Lindsay Lohan -- My Toxic Ex-Friends Are Dead to Me

Lindsay Lohan has made a list ... she's checked it twice ... and she's decided ... the majority of her so-called "friends" will be CUT from her life when she's sprung from rehab.

Sources close to the actress tell TMZ, Lindsay recently sat down at Cliffside -- where she's currently enrolled in a substance abuse treatment program -- and made a list of 100 friends ... who knew?

We’re told Lilo was inspired by a therapy session about "toxic friends and influences." Lindsay actually made 2 lists -- one with the friends she'll keep, and the other with the ones she'll ax.

According to sources, 80 people were on the "cut" list.