Daniel Romanchuk (born August 3, 1998) is an American Paralympic athlete who competes primarily in wheelchair racing events.

Romanchuk was born in Mount Airy, Maryland with spina bifida, a birth defect in which there is incomplete closing of the backbone and membranes around the spinal cord.

[7] In October 2018, Romanchuk won the Chicago Marathon with a time of 1:31:34; he beat defending champion Marcel Hug by one second.

[11] In 2019 he also won the Chicago Marathon and he qualified to represent the United States at the 2020 Summer Paralympics held in Tokyo, Japan.

[14] In November 2024, Romanchuk secured his third victory in the men’s wheelchair division of the New York City Marathon, finishing 5 seconds ahead of David Weir and completing the race in a time of 1:36:31.