The 2017–18 Liga Leumit was the 19th season as second tier since its re-alignment in 1999 and the 76th season of second-tier football in Israel. A total of sixteen teams were contesting in the league, including twelve sides from the 2016–17 season, the two promoted teams from 2016–17 Liga Alef and the two relegated teams from 2016–17 Israeli Premier League.