Countess Rosina is a fictional character from the operatic world, notably featured in the comic opera The Barber of Seville by Gioachino Rossini. She is portrayed as a young and intelligent woman who seeks to escape the constraints of her life, particularly from her guardian, Dr. Bartolo, who wishes to marry her. In the story, Countess Rosina is in love with Count Almaviva, who disguises himself to win her affection. Her character embodies themes of love, cleverness, and the desire for freedom, making her a central figure in the opera's humorous and romantic plot.