Neighbors to Maria Shriver TAKE DOWN YOUR XMAS LIGHTS ALREADY!!!

0327_maria_shriver_house_christmas_lights_launchOn the 94th day of Christmas ... MARIA SHRIVER STILL HASN'T TAKEN DOWN HER CHRISTMAS LIGHTS ... and her Brentwood neighbors are starting to go all Ebenezer Scrooge ... TMZ has learned.

Sources in Maria's super fancy Brentwood community tell TMZ, the neighbors have been clucking about Maria's ultra-bright Xmas light display for weeks now ... because Christmas is long over, and the lights on the trees around her property have become an eyesore.

In fact, TMZ shot video (below) on Maria's street Tuesday night ... and her house was the ONLY ONE still sportin' the Clark Griswold treatment.

We're told the neighbors haven't approached Maria directly yet because they like her and don't want to hurt her feelings ... but in typical passive aggressive neighborly fashion, they're hoping word will make its way back to her.

If not ... she can just keep the decorations up until December -- after all, it's only another 271 days until Santa comes back to town.