The 2016–17 Liga II was the 77th season of the Liga II, the second tier of the Romanian football league system. The season began on 6 August 2016. A total of 20 teams contested the league. It was the first Liga II season with a single series. The season was played in a round-robin tournament. The first two teams promoted to Liga I at the end of the season and the third-placed team played a play-off match against the 12th-placed team from Liga I. The last five teams relegated to Liga III.