Johnny Buss -- L.A. Lakers Exec DIVORCING Ex-Clippers Dancer

Los Angeles Lakers executive Johnny Buss -- oldest son of deceased Lakers owner Jerry Buss -- has filed for divorce from his wife, who happens to be an ex-Clippers dancer, TMZ has learned.

Johnny -- who's currently the V.P. of Strategic Development for the Lake Show -- filed divorce docs in L.A. County Superior Court ... seeking to end his marriage to Christy Curtis Buss ... a marriage that began in 1991.

Here's the weird part ... in the court docs, obtained by TMZ, Buss states that he and Christy separated back in 2000 ... which means they've been split up for 13 YEARS!

Apparently, Johnny finally felt like cutting the cord ... because he filed the docs himself on June 11, 2013. It's unclear why he waited so long. They have no minor children.

In the docs, Buss blames the split on irreconcilable differences ... but checked the box that acknowledges he'll have to pony up spousal support.

Christy is no slouch ... after she danced for the Clip squad, she went on to be a successful choreographer for the L.A. Sparks and various TV shows including "Days of Our Lives," which she worked on for 19 years.