The 2009–10 LNB Pro A season was the 88th season of the French Basketball Championship and the 23rd season since inception of the Ligue Nationale de Basketball (LNB).

The regular season started on October 3, 2009 and ended on May 11, 2010.

The play-offs were held from May 18, 2010 till June 13, 2010.

Cholet Basket, after finishing first of the regular season,[1] won the French Pro A League by defeating Le Mans SB in playoffs final (81-65).

[2] Teams promoted from 2008 to 2009 Pro B (French 2nd division) Teams relegated to 2009–10 Pro B Teams promoted from 2009 to 2010 Pro B Teams relegated to 2010–11 Pro B [9]