Kathryn Hackett King (born 1980)[1] is an American lawyer who has served a justice of the Arizona Supreme Court, sworn in on July 8, 2021.

After law school, King clerked for Arizona Supreme Court Justice Michael D. Ryan and then became an associate at Snell & Wilmer.

[4] In March 2020, Ducey appointed King to the Arizona Board of Regents.

In July 2021, Ducey appointed King to a seat on the Arizona Supreme Court, replacing Andrew Gould.

[6] King's professional affiliations include membership to the Arizona Women Lawyers Association and the Federalist Society.