The Peace Dollar is a silver United States dollar coin minted from 1921 to 1928, then again in 1934 and 1935. Early proposals for the coin called for a commemorative issue to coincide with the end of World War I, but the Peace Dollar was issued as a circulating coin.

Designed by Anthony de Francisci, the Peace Dollar was so named because the word PEACE appears on the bottom of the coin's reverse. It contains 0.77344 troy ounces of silver, and was the successor to the Morgan Dollar, which had not been regularly minted since 1904. With the passage of the Pittman Act in 1918, the mintage of dollar coins was enabled to start again. Prior to the design and acceptance of the Peace Dollar, the Morgan Dollar was minted again in 1921.

After a six-year pause in minting, the Peace Dollar was again minted in 1934 and 1935. It was minted briefly in 1965 (dated 1964), but no examples of this issue were ever released to the public and the entire mintage was supposed to have been melted. The Peace Dollar is the last dollar coin to actually contain silver that was minted for circulation in the United States.