No — Princess Eugenie is not confirmed to be left-handed, as no reliable public source currently confirms her handedness.

Princess Eugenie Victoria Helena, Mrs. Brooksbank, born on March 23, 1990, is a member of the British royal family. She is the younger daughter of Prince Andrew, Duke of York, and Sarah, Duchess of York.

Princess Eugenie is currently 11th in the line of succession to the British throne. She holds a degree in Art History, English Literature, and Politics from Newcastle University.

Beyond her royal duties, Princess Eugenie is known for her work in the art world. She serves as a director at Hauser & Wirth, a contemporary art gallery.

She is also a patron of several charities, focusing on areas such as children's health, modern slavery, and the arts. She married Jack Brooksbank in 2018 and they have two sons.