According to Think Baby Names, the name Roxanne means "dawn" and is of Persian origin. The female name is a modern blend of the names Roxane and Alexandra. Roxane was a Persian princess who married Alexander the Great.
The Baby Names website points out that Roxanne is the name of Cyrano's love interest in the play "Cyrano de Bergerac" by Edmond Rostand. It is also the name of a song by The Police.
According to Who's Dated Who, some famous Roxannes include actress Roxanne Pallet, British actress Roxanne McKee, actress Roxanne Pulitzer, actress Roxanne Hart, actress Roxanne Beckford and American actress Roxanne Day.