- Source: Senator Underwood
- House of Cards (seri televisi Amerika Serikat)
- Stephen Mallory
- John Sherman Cooper
- Thomas Posey
- Konfederasi Amerika
- Kay Bailey Hutchison
- Republikan Rockefeller
- Daftar dukungan kampanye presiden Kamala Harris 2024
- Daftar orang Asia Amerika dan Kepulauan Pasifik Amerika dalam Kongres Amerika Serikat
- Senator Underwood
- Frank Underwood (House of Cards)
- Carrie Underwood
- Lauren Underwood
- Oscar Underwood
- Revenue Act of 1913
- Robert A. Underwood
- Nerissa Bretania Underwood
- Mike Fisher (ice hockey)
- Joseph R. Underwood
Senator Underwood may refer to:
Jim Underwood (politician) (1946–2013), Guam Senate
Joseph R. Underwood (1791–1876), U.S. Senator from Kentucky
Levi Underwood (1821–1902), Vermont State Senate
Nerissa Bretania Underwood (born 1955), Guam Senate
Oscar Underwood (1862–1929), U.S. Senator from Alabama
Thomas R. Underwood (1898–1956), U.S. Senator from Kentucky
Warner Underwood (1808–1872), Kentucky State Senate