Patrick Mahomes is a married man -- the NFL superstar quarterback just tied the knot with his high school sweetheart, Brittany Matthews ... and the ceremony looked incredible!!
The Mahomeses had their closest friends and family in attendance for the wedding ... including Patrick's Chiefs teammates.
The QB's younger brother, Jackson, was best man ... and All-Pro bestie Travis Kelce was also a groomsman.
As for the bridal party, Kelce's GF, Kayla Nicole, was a bridesmaid .