Kirstie Alley (born January 12, 1955) is an Americann actress.

Alley rose to prominence in the 1982 movie Star Trek: The Wrath of Khan, playing Vulcan officer Saavik.

She played neurotic corporate executive Rebecca Howe on hit TV series Cheers, and later starred in the Look Who's Talking movie series with fellow scientologist, John Travolta.

Her NBC TV sitcom Veronica's Closet ran for three seasons.