Leslie Lloyd Odom Jr. (; born August 6, 1981) is an American actor, singer and songwriter. He made his acting debut on Broadway in 1998 and first gained recognition for his portrayal of Aaron Burr in the musical Hamilton, which earned him a Tony Award for Best Actor in a Musical and a Grammy Award for Best Musical Theater Album in the same year. His performance was captured in the Disney+ live stage recording of Hamilton which earned him a Primetime Emmy Award for Outstanding Actor in a Leading Role in a Limited Series or Movie nomination.

Odom is also known for his roles in the television series Smash (2012–2013) and Person of Interest (2013–2014), as well as the films Red Tails (2012), Murder on the Orient Express (2017), Harriet (2019), The Many Saints of Newark (2021), Glass Onion: A Knives Out Mystery (2022), and The Exorcist: Believer (2023). For his role as singer Sam Cooke in One Night in Miami... (2020) he earned nominations for the Academy Award, BAFTA Award, Screen Actors Guild Award, and Golden Globe Award for Best Supporting Actor. He was also nominated for the Academy Award and Golden Globe for writing the film's original song "Speak Now".

Odom voiced the character of Owen Tillerman in the Apple TV+ animated musical-comedy series Central Park, for which he was nominated for an Primetime Emmy Award in 2020. Odom has released five albums: Leslie Odom Jr. (2014), Simply Christmas (2016), Mr. (2019), The Christmas Album (2020), and When a Crooner Dies (2023). He released his autobiography, Failing Up, in 2018. Odom returned to Broadway in 2023, playing the title role in Purlie Victorious for which he earned a Tony Award for Best Actor in a Play nomination.