The scores were 6-4, 6-4, and extended the Belgian star's winning streak to 20 matches in a row.
It was the fourth straight tournament title for the top-ranked women's player. She won the Rogers Cup, U.S. Open and Porsche Tennis Grand Prix in Stuttgart before this week's run, and has not lost since a semifinal setback against Golovin's French compatriot, Marion Bartoli, at Wimbledon.
She broke serve in the third game of the second set, and held her own serve the rest of the way.
"Even if I did not play my best, I was more positive than yesterday," Henin said.
Golovin sank to 0-4 lifetime against Henin after trying for her third title this season and third of her career.
She won events at Amelia Island, S.C., and Portoroz, Slovenia.