Duckpin bowling is a variation of the sport of bowling.

Duckpin balls are 4+3⁄4 in (12 cm) to 5 in (12.7 cm) in diameter, weigh 3 lb 6 oz (1.5 kg) to 3 lb 12 oz (1.7 kg) each, and lack finger holes. They are thus significantly smaller than those used in ten-pin bowling but are slightly larger and heavier than those used in candlepin bowling.

Duckpins, although arranged in a triangle identical to that used in ten-pin bowling, are shorter, slightly thinner, and lighter than their ten-pin equivalents, which makes it more difficult for the smaller ball to achieve a strike. For this reason, similar to candlepin bowling, the bowler is allowed three rolls per frame.