The following is an alphabetical list of political families in the United **S**tates whose last name begins with S.

The Udalls

The Udalls are a politically notable family in the West. Despite having many Republican politicians in the family, most that have risen to national prominence have been Democrats. They are also related to the Lee–Hamblin family. NOTE: David King Udall was also brother-in-law of Utah Territory Representative William Thomas Stewart and grandson-in-law of California Assemblyman Jefferson Hunt. Udall's third wife, Mary Ann Morgan, was also widow of Utah Territory Representative John Hamilton Morgan. Levi Stewart Udall and Jesse Addison Udall were also grandsons-in-law of Utah Territory Representative John D. Lee. Tom Udall, Mark Udall, and Gordon Harold Smith are also second cousins of U.S. Senator Mike Lee and Utah Supreme Court Justice Thomas Rex Lee, who are sons of Rex E. Lee.

The Umsteads

NOTE: William B. Umstead was also distant cousin of U.S. Senator Isaac S. Pennybacker, U.S. Representative Green Berry Samuels, and Pennsylvania Governor Samuel W. Pennypacker.

The Underwoods

The Uphams

The Upshurs

The Upsons

The Uptons

The Utters

The Utterbacks