;Promoted to
Liga II •
Aerostar Bacău – ended a one-year stay. •
FCU 1948 Craiova – ended a two-year stay. •
Unirea Slobozia – ended a five-year stay. •
Slatina – ended a one-year stay. •
Comuna Recea – ended a five-year stay. ;Relegated from
Liga II •
Sportul Snagov and
Daco-Getica București were dissolved during the winter break of the previous season and excluded by the
Romanian Football Federation before the start of the new season.
Promoted from Liga IV •
Bradu Borca – debut. •
Dante Botoșani – debut. •
Satu Mare – debut. •
Progresul Șomcuta Mare – after eighteen years of absence. •
Unirea Ungheni – after eight years of absence. •
Corona Brașov – after eight years of absence. •
Progresul Ezeriș – debut. •
Avântul Periam – debut. •
Petrolul Potcoava – debut. •
Oltenița – after one year of absence. •
Steaua București – debut. •
Sportul Chiscani – after one year of absence. •
Gloria Albești – debut. •
Plopeni – after eight years of absence. •
Avântul Valea Mărului – after two years of absence. •
Râmnicu Sărat – after one year of absence. •
Ocna Mureș – after one year of absence. •
Măgura Cisnădie– after four years of absence. •
Sportul Șimleu Silvaniei– after eleven years of absence. ;Relegated to
Liga IV •
Botoșani II – ended a two-year stay. •
CSU Galați – ended a one-year stay. •
Poseidon Limanu-2 Mai – ended a one-year stay. •
Medgidia – ended a two-year stay. •
Tractorul Cetate – ended a one-year stay. •
Național Sebiș – ended a twelve-year stay. •
CFR Cluj II – ended a three-year stay. ;Other changes • The promoted side
Voința Budeasa and
Bărăganul Ciulnița withdrew. •
Viitorul Constanța II,
Dinamo București II,
Rapid București II,
Concordia Chiajna II,
Academica Clinceni II,
Gaz Metan Mediaș II,
Hermannstadt II and
Kids Tâmpa Brașov were enrolled in Liga III upon request. •
Hușana Huși,
Bacău,
Pașcani,
Axiopolis Cernavodă,
Dacia Unirea Brăila,
FCSB II,
Recolta Gheorghe Doja,
Pucioasa,
Astra II,
Balotești,
Sporting Roșiori,
Cetate Deva,
Filiași,
Poli Timișoara,
Gilortul Târgu Cărbunești,
Unirea Alba Iulia,
Industria Galda,
Odorheiu Secuiesc and
Zalău were spared from relegation due to the interruption of the
2019–20 season, as a result of the
COVID-19 pandemic. • Metalurgistul Cugir was renamed
CSO Cugir. ==League tables==