Desdemona’s exact age is not explicitly stated in William Shakespeare’s play Othello. However, it is generally believed that she is in her late teens or early twenties. This interpretation comes from the context of the play and historical understanding of marriage customs during the time it was set, which was the late 16th century.
In Act 1, Scene 3, when discussing Desdemona’s marriage to Othello, her father, Brabantio, expresses his surprise at her choosing to marry someone of Othello’s background and implies that she is still quite young. Her youthful spirit and passionate nature further suggest she is not yet in the prime of her life.
Overall, while we can’t pinpoint an exact age, the evidence from the text and the social conventions of the time lead us to the conclusion that Desdemona is likely around eighteen to twenty years old. This age contributes to her naïve yet intense love for Othello, which ultimately plays a significant role in the tragic events of the play.