Croatia participated in the Junior Eurovision Song Contest five times, and won the inaugural edition in 2003. Croatian broadcaster Hrvatska radiotelevizija (HRT), a member organisation of the European Broadcasting Union (EBU), were responsible for the country's participation. Croatia participated in the first four editions, from 2003 to 2006, organising a national final to select the country's entrant. The first representative to participate for Croatia was Dino Jelusić with the song "Ti si moja prva ljubav", which finished in first place out of sixteen participating entries, with a score of 134 points. Croatia was absent from the contest between 2007 and 2013, but HRT decided to return to the contest in 2014 and selected their entry internally. In 2014, Josie finished in last place for Croatia with the song "Game Over", after which HRT again withdrew from competing the following year.
The Netherlands has participated in every edition of the Junior Eurovision Song Contest since its inception in 2003. The country has won the competition on one occasion; in 2009, with the song "Click Clack" by Ralf Mackenbach. Dutch broadcaster AVROTROS has been responsible for the participation, selecting the nation's entrant through the national final Junior Songfestival. The Netherlands is the only country to have taken part in every edition of the contest.
Belarus has participated in the Junior Eurovision Song Contest in every edition since its inception in 2003 until 2020. The Belarusian Television and Radio Company (BTRC), then a member organisation of the European Broadcasting Union (EBU), has been responsible for the selection process of its participants since its debut. The country hosted the contest at the Minsk-Arena in 2010 and again in 2018.
The participation of Latvia in the Junior Eurovision Song Contest first began at the inaugural Junior Eurovision Song Contest in 2003 which took place in Copenhagen, Denmark. Latvijas Televīzija (LTV), a member of the European Broadcasting Union (EBU), were responsible for the selection process of their participation. Latvia used a national selection format, broadcasting shows entitled "Bērnu Eirovīzija" and later "Balss Pavēlnieks", for their participation at the contests. The first representative to participate for the nation at the 2003 contest was Dzintars Čīča with the song "Tu esi vasarā", which finished in ninth place out of sixteen participating entries, achieving a score of thirty-seven points. Latvia were originally absent from the competition from 2006 to 2009. Latvia briefly returned in 2010 and 2011 however again withdrew from competing after the contest held in Yerevan, and have yet to make their return to the contest.
Poland has entered the Junior Eurovision Song Contest nine times, competing in the first contest in 2003. The Polish broadcaster Telewizja Polska (TVP) decided to withdraw from the contest after coming last in both 2003 and in 2004, despite TVP signing a 3-year contract with the European Broadcasting Union (EBU). In 2016, it was announced that Poland would return after an 11-year break. Poland is the first country in the history of the Junior Eurovision Song Contest to win twice in a row: in 2018 with Roksana Węgiel and her song "Anyone I Want to Be" and then in 2019 with Viki Gabor and her song "Superhero".
The participation of Portugal in the Junior Eurovision Song Contest first began at the Junior Eurovision Song Contest in 2006 which took place in Bucharest, Romania. Rádio e Televisão de Portugal (RTP), a member of the European Broadcasting Union (EBU), were responsible for the selection process of their participation. Portugal used a national selection format, broadcasting a show entitled "Festival da Canção Junior", for their participation at the contests. This was a junior version of Festival da Canção, the national music competition organised by broadcaster RTP to choose the Portuguese entry for the Eurovision Song Contest. The first representative to participate for the nation at the 2006 contest was Pedro Madeira with the song "Deixa-me sentir", which finished in second-last place out of fifteen participating entries, achieving a score of twenty-two points. Their worst result to date has been achieved by Rita Laranjeira with her song "Gosto de tudo " in the Junior Eurovision Song Contest 2018 where she placed 18th. Portugal withdrew from competing in 2008, and returned in 2017. They withdrew again in 2020 due to the COVID-19 pandemic. Portugal returned in 2021, where they achieved 11th place, their best result up to that point. In 2022 the country surpassed this record and reached 8th place.
Ukraine has participated in the Junior Eurovision Song Contest since 2006. Ukrainian public broadcaster UA:PBC, has been responsible for the participation. Ukraine won the Junior Eurovision Song Contest 2012 with the song "Nebo" performed by Anastasiya Petryk. Her sister, Viktoria Petryk, reached 2nd place at the Junior Eurovision Song Contest 2008 with "Matrosy".
France has participated in the Junior Eurovision Song Contest seven times, debuting in Lillehammer, Norway, at the Junior Eurovision Song Contest 2004. France Télévisions, a member organisation of the European Broadcasting Union (EBU), is responsible for the selection process of their participation. The first representative to participate for the nation was Thomas Pontier with the song "Si on voulait bien", which finished in sixth place out of eighteen participating entries, achieving a score of seventy-eight points. France did not participate after 2004, and made its return to the contest in 2018, 14 years later. France has won the contest on three occasions: in 2020, with Valentina and the song "J'imagine", in 2022, with Lissandro and the song "Oh maman!", and in 2023, with Zoé Clauzure and the song "Cœur".
Armenia has participated in the Junior Eurovision Song Contest since 2007. Armenian Public Television (ARMTV), a member organisation of the European Broadcasting Union (EBU), have been responsible for the selection process of their participants since their debut.
Lithuania has sent four entries to the Junior Eurovision Song Contest, first entering at the 2007 Contest in Rotterdam. Lithuania briefly returned in 2010 and 2011 however again withdrew from competing after the contest held in Yerevan, and have yet to make their return to the contest.
The participation of Georgia in the Junior Eurovision Song Contest first began at the Junior Eurovision Song Contest in 2007 which took place in Rotterdam, Netherlands. The Georgian Public Broadcaster (GPB), a member organisation of the European Broadcasting Union (EBU), have been responsible for the selection process of their participants since their debut. The first representative to participate for the nation at the 2007 contest was Mariam Romelashvili with the song "Odelia Ranuni", which finished in fourth place out of seventeen participating entries, achieving a score of one hundred and sixteen points. Since their debut, Georgia has never missed an edition of the contest, with three of these participations resulting in a win. These wins occurred in 2008, 2011 and 2016, making Georgia the most successful country in the contest, alongside France. They hosted the contest for the first time in 2017 at the Olympic Palace in Tbilisi.
The participation of Israel in the Junior Eurovision Song Contest first began in Amsterdam, Netherlands, at the Junior Eurovision Song Contest 2012. The Israel Broadcasting Authority (IBA) a member organisation of the European Broadcasting Union (EBU) were responsible for the selection process of their participation in 2012 and 2016, with the Israeli Public Broadcasting Corporation (IPBC) taking over participation from 2018. The first representative to participate for the nation was Kids.il with the song "Let the Music Win", which finished in eighth place out of twelve participating entries, achieving a score of 68 points. Israel did not return to the contest in 2013, and also sat out of the 2014 and 2015 contests. However, following their success at the 2015 and 2016 Eurovision Song Contests, the IBA expressed an interest in making a return to competing at Junior Eurovision. Israel returned to the contest in 2016, with their entrant being selected internally. Israel then withdrew from the contest in 2017, before returning again in 2018, and withdrawing again in 2019.
Albania debuted in the Junior Eurovision Song Contest in 2012. Radio Televizioni Shqiptar (RTSH), a member organisation of the European Broadcasting Union (EBU), has been responsible for the selection process of their participants since their debut.
The participation of Azerbaijan in the Junior Eurovision Song Contest first began at the tenth edition of the Junior Eurovision Song Contest in 2012 which took place in Amsterdam, the Netherlands. İctimai Television (İTV), a member organisation of the European Broadcasting Union (EBU), were responsible for the selection process of their participation. Azerbaijan originally used a national final format for their participation at the 2012 contest. The first representatives to participate for the nation at the 2012 contest were Omar & Suada with the song "Girls and Boys ", which finished in eleventh place out of twelve participating entries. After participating for a second time in 2013 and finishing seventh, İTV withdrew from the contest in 2014 for unspecified reasons. The country returned to participate in 2018 where they placed sixteenth in a field of twenty, before withdrawing once again for a further two years. Azerbaijan returned to the 2021 contest in Paris, France, with İTV internally selected Sona Azizova to represent the nation with "One Of Those Days". Azizova achieved Azerbaijan's highest placing to date, achieving fifth place in a field of 19. İTV then withdrew again from the 2022 contest in Yerevan, Armenia and are yet to return.
The Junior Eurovision Song Contest 2013 was the 11th edition of the annual Junior Eurovision Song Contest. It took place in Kyiv, Ukraine on 30 November 2013. The venue for the contest was announced on 10 April 2013, as the Palace "Ukraine". Ukrainian broadcaster National Television Company of Ukraine (NTU) was the host broadcaster for the event. It was the second time the contest was held in Kyiv, the first being the 2009 contest. It was also the second time in the history of the Junior Eurovision Song Contest that the event took place in last year's winning country, as well as the first time that the event was held in the same city twice. A total of twelve countries participated, with Macedonia and Malta making a return, and Albania, Belgium and Israel choosing to withdraw. San Marino made their debut in the contest. Cyprus was originally the thirteenth country to take part but pulled out the last minute.
The Junior Eurovision Song Contest 2014 was the 12th edition of the annual Junior Eurovision Song Contest, and took place, for the first time, in Malta. This was the third time that the contest was hosted by the previous year's winning country. Maltese national broadcaster PBS was the host broadcaster for the event. The final took place on 15 November 2014 and was in the Malta Shipbuilding in Marsa, near Valletta. Moira Delia, a Maltese television personality, hosted the show, marking the first time in Junior Eurovision history that there was only one presenter of the show.
The Junior Eurovision Song Contest 2015 was the thirteenth edition of the annual Junior Eurovision Song Contest, and took place, for the first time, in Bulgaria. The Bulgarian national broadcaster BNT was the host broadcaster for the event. The final took place on 21 November 2015 and was held at the Arena Armeec in Sofia. Poli Genova, a Bulgarian singer and former representative of Bulgaria in the Eurovision Song Contest 2011, hosted the show. A total of seventeen countries participated, with Australia and Ireland making their debuts. Albania and Macedonia returned after being absent since the 2012 and 2013 contests, respectively. Croatia and Cyprus withdrew after returning in the 2014 edition, while Sweden withdrew for the first time since 2008.
Italy debuted at the Junior Eurovision Song Contest when the twelfth edition of competition was held in Malta in 2014. The Italian broadcaster, RAI, selected the debut entry of country via an internal selection as "Tu primo grande amore" by Vincenzo Cantiello, which went on to win with a total of 159 points. This made Italy the second country to win with the debut entry after Croatia's victory in the first edition. Before Italy debuted, there were two entries sung in Italian: "Birichino", which represented Switzerland in 2004 and "O-o-o Sole intorno a me" which represented San Marino in 2013.
Australia participated in the Junior Eurovision Song Contest five times between 2015 and 2019. Special Broadcasting Service (SBS), an associate member of the European Broadcasting Union (EBU), was responsible for the selection process of their participants at the 2015 and 2016 contests, with the Australian Broadcasting Corporation (ABC) taking over the country's participation from 2017. SBS previously broadcast every edition of the Junior Eurovision Song Contest on a delay.
The Junior Eurovision Song Contest 2020 was the 18th edition of the annual Junior Eurovision Song Contest, organised by Telewizja Polska (TVP) and the European Broadcasting Union (EBU). The contest took place on 29 November 2020, and was held in Warsaw, Poland, following the country's victory at the 2019 contest with the song "Superhero" by Viki Gabor. This was the first time the contest was held in the same country for two consecutive years.
