There were elections in 1909 to the United States House of Representatives:

District	Incumbent			This race
District	Member / Delegate	Party	First elected	Results	Candidates
Louisiana 2	Robert C. Davey	Democratic	1892 1894 (Retired) 1896	Incumbent member-elect died during previous congress. New member elected March 30, 1909. Democratic hold.	▌Y Samuel L. Gilmore (Democratic) Unopposed^[1]
Ohio 21	Theodore E. Burton	Republican	[data missing]	Incumbent member-elect resigned during previous congress. New member elected April 20, 1909. Republican hold.	▌Y James H. Cassidy (Republican) 61.76% ▌Matthew B. Excell (Democratic) 33.87% ▌Robert Bandlow (Socialist) 4.37%^[2]
Illinois 6	William Lorimer	Republican	[data missing]	Incumbent resigned June 17, 1909, after being elected to the U.S. Senate. New member elected November 23, 1909. Republican hold.	▌Y William Moxley (Republican) ▌Frank C. Wood (Democratic) 32.10% ▌James A. Jarvis (Socialist) 3.08% ▌Samuel J. Clark (Prohibition) 2.36% ▌Willis D. Casey (Independent) 1.36%^[3]
Washington 2	Francis W. Cushman	Republican	1898	Incumbent died July 6, 1909. New member elected November 2, 1909. Republican hold.	▌Y W. W. McCredie (Republican) 52.15% ▌Ernest Lister (Democratic) 38.23% ▌Emil Herman (Socialist) 5.69% ▌H. K. Rockhill (Prohibition) 2.54% ▌Thomas Harlan (Independent) 0.72% ▌C. M. Carlson (Socialist Labor) 0.68%^[4]
Philippines at-large	Pablo Ocampo	Democratic	1907	Term ended November 22, 1909. New delegate elected November 23, 1909. Nacionalista gain.	▌Y Manuel L. Quezon (Nacionalista)