Lewis H. Machen (July 10, 1871 – September 14, 1927) was an American politician and lawyer from Virginia.

Lewis H. Machen was born on July 10, 1871, near Centreville, Fairfax County, Virginia, to Georgie (née Chichester) and James P.

[1] After leaving the University of Virginia, Machen taught one year at the Episcopal High School in Alexandria.

He also spent a year working at a newspaper in Washington, D.C. Machen graduated from the Columbian University in 1897 with a Bachelor of Laws.

[1][4] Machen served as a presidential elector in 1900, representing Virginia's 8th congressional district.