We told you it was coming ... and now it's official -- Johnny Manziel has been formally sued for not paying rent on a $25,000 per month party pad in the Hollywood Hills.
However, Manziel says he's being unfairly targeted and has done NOTHING wrong.
TMZ Sports broke the story ... the guy who owns the legendary Weidlake mansion (used in tons of TV shows) served Manziel and his friends with an eviction notice last week -- claiming the QB missed a rent payment and had badly damaged the property.