The 2020 All-Ireland Intermediate Ladies' Football Championship was the 23rd contested edition of the Ladies' Gaelic Football Association's secondary inter-county Ladies' Gaelic football tournament.
The impact of the COVID-19 pandemic on Gaelic games forced the delay of the tournament until late in the year.
Meath LGFA were the winners for the first time in their history and were promoted to the All-Ireland Senior Ladies' Football Championship in 2021.
13 counties competed in the 2020 tournament. There were three groups of three and one group of four. Each team played the other team's in their group once, earning three points for a win and one for a draw.
The winners of each group competed in the All-Ireland semi-finals.