The first person to receive an Oscar for Best Actress was Janet Gaynor, who won the award at the inaugural Academy Awards in 1929. She was recognized for her performances in three films: "Seventh Heaven," "Street Angel," and "Sunrise: A Song of Two Humans." Gaynor's win marked a significant moment in Hollywood history, establishing the Best Actress category and highlighting the rising importance of female actors in cinema. Her talent and versatility paved the way for future generations of actresses in the film industry.