Henriette Sophie Widerberg (3 September 1796 – 3 April 1872) was a Swedish opera singer (soprano) and memoirist.
She was an elite member of the Royal Swedish Opera and its perhaps most noted singer and prima donna of her time.
She was also active as a courtesan and noted for her love life.
She was appointed Hovsångare in 1837.
She is the first woman in Sweden to have published her own memoirs during her own lifetime.
Her memoirs En skådespelerskas minnen : sjelfbiografi ['Memories of an actress: a selfbiography'] was published in two parts in 1850-51, and republished in 1924.