Katrina Lenk (born November 26, 1974) is an American actress, singer, dancer, musician, and songwriter.

Lenk originated the role of Dina in the Broadway musical The Band's Visit, a performance for which she won the 2018 Tony Award for Best Actress in a Musical. She also performed the lead role of Bobbie in the 2021 gender-swapped revival of Stephen Sondheim's musical Company.^[1] Lenk's additional stage credits include roles in the Broadway productions of Spider-Man: Turn Off the Dark, Once, and Indecent, as well as roles in regional theater productions.

Lenk was born in Chicago, Illinois to a family of Eastern European descent. Though it has been claimed that she is of a Russian ethnic background, she has preferred to discuss her heritage with ambiguity.^[2][3][4] She attended Barrington High School in Barrington, Illinois. After enrolling at the School of Music at Northwestern University , she graduated in 1997 while majoring in viola performance and studying voice and musical theatre.^[5][6][7][8]

Lenk appeared as Yitzak in Hedwig and the Angry Inch at the Broadway Theatre, Chicago, in May 2001.^[9] She performed as Linda Lovelace in the musical Lovelace: A Rock Musical in 2008 at the Hayworth Theatre, Los Angeles, about which the L. A. Weekly wrote: "As Linda, Katrina Lenk is sensational—she has a dozen nuanced smiles that range from innocent and shattered to grateful, in order to express whatever passes as kindness when, say, a male co-star (Josh Greene) promises to make their scene fun."^[10]

She made her Broadway debut in The Miracle Worker in March 2010 as the understudy for the roles of Annie Sullivan and Kate Keller.^[11] She joined the cast of the Broadway musical Once in May 2013, in the role of Réza, the violinist.^[12]

In 2015 she appeared in the Yale Repertory Theatre world premiere of Indecent by Paula Vogel.^[13] She then appeared in the 2016 Off-Broadway production at the Vineyard Theatre,^[14] followed by the Broadway production at the Cort Theatre in 2017.^[15][16] In her review for Newsday, Linda Winer noted the "...dancing, singing actors as the earthy, sensual Katrina Lenk."^[17] For her performance she received the 2017 Theatre World Award Dorothy Loudon Award for Excellence.^[11] A performance of the play was filmed for television and broadcast on PBS in November 2017.^[18]

Lenk appeared on Broadway as Dina in the 2017 musical The Band's Visit, for which she won the 2018 Tony Award for Best Actress in a Musical. Craig Nakano of the Los Angeles Times wrote: "For Lenk, the role is another turning point. After studying music and theater at Northwestern University, Lenk devoted herself to theater in California.... it’s her poignant, heart-aching turn as Dina that is poised to make her a star."^[19]

She is the creator of musical persona and stage act Moxy Phinx.^[20][21]

Lenk starred in the lead role of Bobbie, opposite Patti LuPone as Joanne, in a gender-swapped revival of Stephen Sondheim's Company,^[22] which started previews on Broadway at the Bernard B. Jacobs Theatre on March 2 and was scheduled to open on March 22, 2020, until delayed by the COVID-19 pandemic.^[23][24] The production resumed previews on November 15, 2021, for an opening date of December 9, 2021.^{[citation needed]} Lenk also appeared in the final season of Ozark, playing the role of Clare.