|Number of teams||100 (10x10)|
|Level on pyramid||3|
|Promotion to||Liga II|
|Relegation to||Liga IV|
|Domestic cup(s)|| Cupa României |
|Current champions|| Dacia Unirea Brăila |
|Current: 2021–22 Liga III|
The Liga 3, most often spelled as Liga III, is the third level of the Romanian football league system. Its name was changed from Divizia C to Liga III before the start of the 2006–07 season. It was the first in this format (six series of 18 teams each).
Since the 2014–2015 season Liga III was reorganized from 6 to 5 parallel regional divisions, each with 16 teams.
The bottom four teams from each division are relegated at the end of the season to the Liga IV. From the 12th placed teams, the team with the least points is relegated. To determine these teams, separate standings are computed, using only the games played against clubs ranked 1st through 11th.
Since the 2006–2007 season, the winners of each division got promoted to the 2007–08 Liga II season. There were also two playoff tournaments held at neutral venues involving the second placed teams, one with those from series 1, 2 and 3, the other with those from series 4, 5, and 6. The winners of the playoffs also got promoted to the 2007–08 Liga II season.
Since the 2014–2015 season, the winner of each series promotes directly to the Liga II, in total 5 teams.
|Season||Seria I||Seria II||Seria III||Seria IV||Seria V||Seria VI||Seria VII||Seria VIII||Seria IX|
|1992–93||Constructorul Iași||Metalul Plopeni||Gaz Metan Mediaș||Phoenix Baia Mare|
|1993–94||Cetatea Târgu Neamț||Poiana Câmpina||Dacia Pitești||Unirea Dej|
|1994–95||Foresta Fălticeni||Oțelul Târgoviște||Minerul Motru||Minaur Zlatna|
|Other promoted teams: Electro Mecon Onești (I), Dunărea Călărași (II), ARO Câmpulung (III), Olimpia Satu Mare (IV).|
|1995–96||Petrolul Moinești||Danubiana București||Precizia Săcele||CFR Cluj-Napoca|
|1996–97||Nitramonia Făgăraș||Midia Năvodari||Vega Deva||UM Timișoara|
|1997–98||Laminorul Roman||Cimentul Fieni||Rulmentul Alexandria||Bihor Oradea|
|Other promoted teams: Chimica Târnăveni (I), Drobeta-Turnu Severin (III)|
|1998–99||Diplomatic Focșani||Callatis Mangalia||Electro Bere Craiova||UM Timișoara|
|Other promoted teams: Juventus București (II), Flacăra Râmnicu Vâlcea (III)|
|1999–00||Apemin Borsec||Hondor Agigea||Fulgerul Bragadiru||Cetate Deva||Pandurii Târgu-Jiu||Baia Mare|
|2000–01||Petrolul Moinești||Dacia Unirea Brăila||Inter Gaz București||Electromagnetica București||Inter Pitești||Minaur Zlatna||Industria Sârmei Câmpia Turzii||Universitatea Cluj|
|2001–02||Politehnica Unirea Iași||Gloria Buzău||Medgidia||Rulmentul Alexandria||Minerul Motru||Corvinul Hunedoara||Metrom Brașov||CFR Cluj-Napoca|
|2002–03||Petrolul Moinești||Unirea Urziceni||Juventus București||Dacia Mioveni||Rarora Râmnicu Vâlcea||Jiul Petroșani||Oltul Sfântu Gheorghe||Armătura Zalău|
|Other promoted teams: Laminorul Roman (I), FC Vaslui (I), Poiana Câmpina (II), Callatis Mangalia (III), Electrica Constanța (III), Chindia Târgoviște (IV), Building Vânju Mare (V),|
Certej (VI), ACU Arad (VI), Precizia Săcele (VII), Tricotaje Ineu (VIII), Oașul Negrești (VIII).
|2003–04||Botoșani||Dunărea Galați||Otopeni||Ghimbav||Oltul Slatina||Politehnica Timișoara||Unirea Sânnicolau Mare||Unirea Dej||FC Sibiu|
|2004–05||Cetatea Suceava||Portul Constanța||Dunărea Giurgiu||Poiana Câmpina||Râmnicu Vâlcea||CFR Timișoara||Minerul Lupeni||Forex Brașov||Gloria Bistrița II|
|2005–06||Politehnica Iași II||Delta Tulcea||Snagov||Chimia Brazi||Building Vânju Mare||Oltchim Râmnicu Vâlcea||Auxerre Lugoj||Baia Mare||Ghimbav|
|Other promoted teams: Ghimbav were not eligible for promotion, runners-up Tractorul Brașov promoted.|
|Season||Seria I||Seria II||Seria III||Seria IV||Seria V||Seria VI|
|2006–07||Focșani||Dinamo București II||Concordia Chiajna||Drobeta-Turnu Severin||Arieșul Turda||Liberty Salonta|
|Other promoted teams: Inter Gaz București (II), Mureșul Deva (V).|
|2007–08||Cetatea Suceava||Snagov||FC Ploiești||Internațional Curtea de Argeș||Unirea Sânnicolau Mare||Luceafărul Lotus Băile Felix|
|Other promoted teams: Buftea (III), ACU Arad (V).|
|2008–09||Râmnicu Sărat||FCSB II||Victoria Brănești||Gaz Metan CFR Craiova||Fortuna Covaci||Baia Mare|
|Other promoted teams: Tricolorul Breaza (III), Silvania Șimleu Silvaniei (VI).|
|2009–10||Dacia Unirea Brăila||Viitorul Constanța||Juventus București||Alro Slatina||Pandurii Târgu Jiu II||Voința Sibiu|
|Other promoted teams: Pandurii Târgu Jiu II were not eligible for promotion, runners-up ACU Arad promoted.|
|2010–11||FCM Bacău||Callatis Mangalia||Chindia Târgoviște||CSM Slatina||Luceafărul Oradea||FCMU Baia Mare|
|2011–12||Rapid CFR Suceava||Unirea Slobozia||Buftea||Damila Măciuca||Recaș||Corona Brașov|
|2012–13||SC Bacău||Gloria Buzău||Berceni||Minerul Motru||Olimpia Satu Mare||Unirea Tărlungeni|
|2013–14||Dorohoi||Voluntari||Balotești||Caransebeș||Șoimii Pâncota||Fortuna Poiana Câmpina|
|2014–15||Bucovina Pojorâta||Dunărea Călărași||Chindia Târgoviște||UTA Arad||Baia Mare|
|2015–16||Sepsi Sfântu Gheorghe||Juventus București||Afumați||ASU Politehnica Timișoara||Luceafărul Oradea|
|2016–17||Știința Miroslava||Metaloglobus București||SCM Pitești||Ripensia Timișoara||Hermannstadt|
|2017–18||Aerostar Bacău||Farul Constanța||Petrolul Ploiești||Viitorul P. Târgu Jiu||Universitatea Cluj|
|2018–19||SCM Gloria Buzău||Rapid București||Turris-Oltul Turnu Măgurele||CSM Reșița||Miercurea Ciuc|
|2019–20||Aerostar Bacău||Unirea Slobozia||CSM Slatina||FC U Craiova 1948||Comuna Recea|
|Season was suspended due to the COVID-19 pandemic in Romania.|
|Season||Seria I||Seria II||Seria III||Seria IV||Seria V||Seria VI||Seria VII||Seria VIII||Seria IX||Seria X|
|2020–21||Bucovina Rădăuți||Oțelul Galați||Afumați||Steaua București||Corona Brașov||Vedița Colonești||Viitorul Șelimbăr||Șoimii Lipova||Cugir||Minaur Baia Mare|
|Promoted teams: Dacia Unirea Brăila , Steaua București , Corona Brașov , Viitorul Șelimbăr , Unirea Dej|
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