Nathaniel Butler (January 6, 1870 – May 24, 1943) was an American pioneer professional cyclist.

[1] On track he won a bronze medal in the motor-paced racing at the 1909 World Championships.

[2] Butler was born in Halifax, Nova Scotia, in a family of a craftsman and grew up in Cambridge, Massachusetts.

[3] He then turned professional, and competed in motor-paced racing at the 1899 World Championships, together with brother Tom.

During his first year in Europe he participated in the famous Bol d'Or on Paris' Buffalo track, where he finished third.