William Beck Widnall (March 17, 1906 – December 28, 1983) was a Republican Party politician who served as a member of the United States House of Representatives for 24 years representing New Jersey's 7th congressional district.

[1] Widnall then practiced law in Hackensack and served in the New Jersey General Assembly from 1946 to 1950.

He opposed building the Kennedy Center in its current location as being too difficult to reach and not attached to the larger Metro system.

[2] Widnall served until his own resignation from Congress on December 31, 1974, following his failed reelection bid in 1974.

[7] After leaving Congress, Widnall served as chairman of the National Commission of Electronic Fund Transfers from November 1975 to 1981.