Kirtland Irving Perky (February 8, 1867 – January 9, 1939) was an American attorney and politician who served as a United States senator from Idaho.

He studied law at the University of Iowa College of Law in Iowa City, and was admitted to the bar in 1890, commencing practice in Wahoo, Nebraska.

[1] Following the death of Weldon B. Heyburn in 1912, Perky was appointed to the vacant U.S. Senate seat by Governor James H. Hawley.

A Democrat, he served less than three months, from November 18, 1912, to February 5, 1913, when a successor was elected, James H. Brady.

Perky died at age 71 in 1939 at Good Samaritan Hospital.