James Thomas Beall Jr. (born December 7, 1951) is an American politician who served in the California State Senate from 2012 to 2020.

A Democrat, he represented the 15th Senate District, which encompasses the South Bay and Silicon Valley.

As a councilman and county supervisor, Beall served two decades on the California Metropolitan Transportation Commission, where he lobbied commissioners to select the extension of the Bay Area Rapid Transit system to San Jose as a top priority project, enabling it to eventually receive $900 million in federal funding.

[citation needed] In 2011, Beall announced his candidacy for the new District 15 seat of the California State Senate.

[citation needed] In 2016, Beall was challenged by Democratic state Assemblywoman Nora Campos, who was prevented from seeking reelection by term limits.