The Netherlands has participated in every edition of the Junior Eurovision Song Contest since its inception in 2003 and is the only country to have taken part in every edition of the contest. 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 participation of Spain in the Junior Eurovision Song Contest first began at the inaugural Junior Eurovision Song Contest in 2003 which took place in Copenhagen, Denmark. The current Spanish participant broadcaster in the contest is Radiotelevisión Española (RTVE). Spain used a national selection format, broadcasting a show entitled Eurojunior, for their participation at the contests. The first representative to participate for the nation at the 2003 contest was Sergio with the song "Desde el cielo", which finished in second place out of sixteen participating entries, achieving a score of 125 points. Spain did not participate from 2007 to 2018, but returned to the contest in 2019.
Cyprus has participated in the Junior Eurovision Song Contest 10 times since debuting at the first contest in 2003. The country's best result was eighth place, which was achieved both at the 2004 and 2006 contests with Marios Tofi and the song "Oneira" and Luis Panagiotou and Christina Christofi and the song "Agoria koritsia" respectively. The national broadcaster Cyprus Broadcasting Corporation (CyBC) has hosted the event for Cyprus once, in 2008 in Limassol.
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.
The participation of Portugal in the Junior Eurovision Song Contest started in 2006, when the Junior Eurovision Song Contest took place in Bucharest, Romania, and includes a total of nine appearances. The country was not represented at the contest between 2008 and 2016, their longest absence run, and in 2020. Rádio e Televisão de Portugal (RTP), the national public broadcaster and a member of the European Broadcasting Union (EBU), have been responsible for the selection process of their participating artists and entries. Portugal's first representative was Pedro Madeira with the song "Deixa-me sentir", which finished in second-last place out of fifteen entries. Their worst result to date came in 2018 when Rita Laranjeira placed 18th out of 20 entries with the song "Gosto de tudo ". The country's current best result is a second place obtained by Victoria Nicole with the song "Esperança" at the 2024 edition, held in Madrid, Spain.
Ukraine has participated in the Junior Eurovision Song Contest since 2006. Ukrainian public broadcaster UA:PBC, has been responsible for the participation.
France has participated in the Junior Eurovision Song Contest eight 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), has 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. They are the most successful country in the contest, having won a total of four times, namely in 2008, 2011, 2016 and 2024. 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 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.
Montenegro debuted at the Junior Eurovision Song Contest 2014, which was held in Marsa, Malta. Prior to its debut as an independent nation, Montenegro participated at the Junior Eurovision Song Contest 2005 as part of Serbia and Montenegro. After taking part in the 2014 and 2015 contests, the nation has not returned to the contest.
Ireland has participated in the Junior Eurovision Song Contest nine times since their first appearance at the 2015 contest. Irish-language broadcaster TG4 has been responsible for the country's participation in the contest, and organises a televised national final Junior Eurovision Éire to select the Irish entries. TG4 did not participate in 2020 due to the COVID-19 pandemic, but returned to the contest in 2021.
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.
