Ex-MLB Star Dwight Gooden -- EVICTED From New Jersey Mansion

More problems for Doc Gooden -- the troubled ex-MLB star has just been evicted from the NJ mansion he was renting after allegedly stiffing his landlord for months ... TMZ has learned.

What makes the situation even sadder ... Dwight's estranged wife was living in the home with their 2 young kids -- who were all forced to leave in July, when officials enforced the eviction.

According to court docs, obtained by TMZ, Dwight and his family moved in to the home back in September 2011 ... and agreed to pay $4,500 per month in rent.

But things went south in March -- when Dwight's wife got a restraining order against the former NY Mets pitcher following a domestic dispute, forcing Doc to move out.

The homeowners claim Doc's family stayed in the home all of March, April, May and June -- but they never got a check from the Goodens for any of those months ... and that adds up to some serious debt.

The homeowners filed legal docs against Gooden -- demanding the back rent plus penalties, totaling more than $18,984 ... AND they also want legal fees.

The court also granted the landlord's permission to evict the Goodens -- and on July 11, Docs family was forced out of the home. It's unclear where they're living now.