Leah Grace Smith[1] (born April 19, 1995) is an American competition swimmer who specializes in freestyle events.

She is a great-granddaughter of World Series champion baseball player Jimmy Smith and great-niece of boxer Billy Conn.[2] Her sister Aileen currently swims for Columbia University.

A graduate of Oakland Catholic High School, Smith committed to swim for the University of Virginia in 2013.

[8] Smith represented the United States at the 2015 World Aquatics Championships where she won a gold medal in the 4 × 200 m freestyle relay.

Along with Ledecky, Maya DiRado, and Allison Schmitt, Smith won her first ever Olympic gold medal in the 4x200-meter freestyle relay.