Rumors are circulating that Gerard Butler has cozied up a NY fashion designer, but reps for the "300" hunk tell "Extra" don't believe it!

According to a report, Butler got close to fashion designer Rachel Roy, ex GF of hip-hop mogul Damon Dash, but Gerard's reps tell "Extra" today, "They are simply friends."

Butler is currently filming "Bounty Hunter" opposite Jennifer Aniston.