Arizona Lady is an operetta in two acts by Hungarian composer Emmerich Kálmán. The libretto was written by Alfred Grünwald and Gustav Beer. It premiered, as a broadcast in Munich on 1 January 1954, and on stage in Bern, at the Stadttheater, on 14 February 1954. Left unfinished at the time of Emmerich Kalman's death, it had been completed by his son, Charles Kalman. It was given its American premiere, in a new English translation by Gerald Frantzen and Hersh Glagov, by Chicago Folks Operetta in July 2010, at Stage 773 in Chicago, Illinois.

The plot, set in the 1920s, concerns a Hungarian woman, Lona Farrell, whose father had emigrated to the US to search for gold. She now runs the Sunshine Ranch in Arizona. As the show begins, she fires her foreman, Jim Slaughter, for having tried to kiss her, and hires a stranger, Roy Dexter from Colorado, despite the concerns of Sheriff Harry Sullivan, who suspects that "Roy Dexter" may actually be the notorious outlaw, Burt Morton. But there is one condition on Roy's employment; he must never even mention the word "love" to Lona; she's had enough of that. Despite that, the sexual tension between Lona and Roy is manifest from the beginning.