Warren Fisher Daniell (born June 26, 1826) was a Democratic member of the United States House of Representatives from New Hampshire. He represented New Hampshire’s 2nd Congressional District and served a single term in Congress. His tenure in the U.S. House began on December 7, 1891, and concluded on March 3, 1893.

Daniell held the office of Representative as a member of the Democratic Party and is recorded as a historical member of Congress from New Hampshire. Serving during the Fifty-second Congress, he participated in the national legislative process at a time of significant political and economic change in the late nineteenth century. He did not return to Congress after his first term, and he is listed as a former officeholder. Further details about his committee assignments, personal life, or activities outside his congressional service are not provided in the available metadata.