William Tilden Blodgett (February 18, 1824 – November 4, 1875) was a New York City art collector who was instrumental in founding the Metropolitan Museum of Art.

He was active in the American Civil War and organized the NYC Union League Club and the Sanitary Fair to raise funds for the wounded.

He founded the newspaper The Nation and was a leader in establishing the American Museum of Natural History.

He was a founding member of the committee to form the Met in 1869 and was its first chairman.

He had been on the selection committee for the American works to be presented at the French exhibition of 1867 and thus felt he knew enough to purchase pictures for the young museum while abroad in 1870.