Troy Aikman -- The Secret Divorce

Troy Aikman is officially a single man ... and has been for months ... after a judge quietly signed off on his divorce back in April ... TMZ has learned.

Back in January, Troy and Rhonda Aikman announced they had separated after ten years of marriage ... but TMZ has uncovered official public records, signed by Troy, in which the Dallas Cowboys legend states that an "agreed final decree of divorce" has been issued and it lists April 12, 2011 as the day the marriage was legally terminated.

Troy and Rhonda have 2 kids together -- and back in January, they released a joint statement saying, "We remain deeply committed to our children ... during this period of adjustment"

Just a few months before the two separated, Troy and Rhonda were already divvying up the family assets. TMZ obtained official documents which show Rhonda gave up her stake in the family mansion in Dallas last November. It's unclear if she got any compensation for taking her name off the deed ... but just a few months later, she purchased a home, also in Dallas, for roughly $1.5 mil.

TMZ called Aikman's rep for comment -- so far, no response.

Aikman shouldn't struggle too much on the dating circuit -- after all, he looks like this now ...