Rachelle Ann Go won the award for Best Actress in a New Production of a Musical in the 2018 BroadwayWorld UK Awards.
The Filipina actress was cited for playing Eliza Schuyler in the West End production of Hamilton.
Rachelle Ann wrote "Thank you everyone" in her Twitter post about the recognition that she received.
Hamilton is a hip-hop musical about the life of American Founding Father Alexander Hamilton.
Rachelle Ann, who played the wife of Alexander Hamilton in the musical, joined this West End production in January 2017.
In the 2018 BroadwayWorld UK Awards, Hamilton won three other recognitions.
These are Best New Production of a Musical, Best Actor in a New Production of a musical for Giles Terera for playing Aaron Burr, and Best Supporting Actor in a New Production of a Musical for Jason Pennycooke for playing Thomas Jefferson.
The BroadwayWorld UK Awards honors the best long-running West End productions and best new productions in the region. The winners were chosen based on public voting conducted on the BroadwayWorld website from October 22 to November 23, 2018.
Thank you so much to everyone who voted for us in the #BWWAwards. Congratulations to @GilesTerera and @gorachelleann for Best Actor / Best Actress, @ThePennycooke for Best Supporting Actor and for voting #HamiltonLDN as Best New Production of a Musical. pic.twitter.com/5ToXi4pTTn— Hamilton West End (@HamiltonWestEnd) November 28, 2018