Lilly Saini Singh (born September 26, 1988) is a Canadian YouTuber. Singh began making YouTube videos in 2010. She originally appeared under the pseudonym Superwoman (stylized IISuperwomanII), her YouTube username until 2019. In 2016, she was included in Forbes list of world's highest paid YouTubers ranking third and earning a reported $7.5 million. By 2017, she was ranked tenth on the Forbes list of the world's highest-paid YouTube stars, earning a reported $10.5 million; as of February 2022 she has 14.7 million subscribers and over three billion video views. Forbes named her one of the 40 most powerful people in comedy in 2019. She has received an MTV Fandom Award, four Streamy Awards, two Teen Choice Awards and a People's Choice Award.

In 2016, Singh released her first film, a documentary chronicling her world tour, entitled A Trip to Unicorn Island. In March 2017, she released her first book, How to Be a Bawse: A Guide to Conquering Life, which reached number one on the New York Times best-seller list. From September 2019 to June 2021, Singh acted as executive producer and host of the NBC late-night talk show A Little Late with Lilly Singh. She is the first person of Indian descent to host an American major broadcast network late-night talk show.