KW just filed legal docs in L.A. ... asking a court to give him a new moniker in the books -- going from Kanye Omari West to simply, "Ye." Yes, the nickname he's gone by for years and years now ... dude wants that to be what Uncle Sam knows him by going forward.

Unclear what might go into the review process for this ... but it seems pretty clear. If a judge signs off, then Kanye as you know him is a goner. It'll be all Ye ... all day.  Fact is, in California, unless there's evidence a name change is designed to commit fraud or other shenanigans ... the judge will approve it.  So, this will get a sign off by the judge.

It's interesting -- Kanye also wants to drop the "West" from his persona altogether too ... which is kinda odd, considering he's shown pride in his family heritage -- and has often even called himself (both in person and in song) Mr. West. That too will be nixed if he gets the green light.

Funny enough ... Kim still has "West" in her own surname -- this after the couple filed for divorce.