Levi Stewart Udall (January 20, 1891 – May 30, 1960) was an American lawyer who served as chief justice of the Arizona Supreme Court.

Born and raised in Arizona, he was the son of David King Udall, a politician, and Ella Stewart Udall, the first telegraph operator in the Arizona Territory.

In 1922, he lost a bid to be elected as clerk to the Arizona Superior Court.[where?]

In 1948 Udall wrote the majority opinion of the Arizona State Supreme Court granting Native Americans living on reservations the right to vote.

[3] In 1960 he was awarded an honorary Doctor of Laws degree from the University of Arizona.