Under One Roof was an English-language sitcom in Singapore. First aired in 1995, it was the first locally produced sitcom in Singapore. A critical and popular success, the show won the Best Comedy Programme or Series Award at the Asian Television Awards in both 1996 and 1997, a Best comedy actor award (Moses Lim in 1996), three best comedy actress awards (Koh Chieng Mun in 1996, Norleena Salim in 1997, and Vernetta Lopez in 1999) and was a finalist in the "Best Sitcom" category at the International Emmy Awards as well as the New York Festivals Awards. It paved the way for future Singaporean local sitcoms such as Phua Chu Kang Pte Ltd and Police & Thief. It is also one of the most popular sitcoms in Singapore just like the other 2 popular Singaporean local sitcom and drama Phua Chu Kang Pte Ltd and Growing Up respectively.

It starred a multicultural cast reflecting the ethnic makeup of Singapore: Moses Lim (Tan Ah Teck), Koh Chieng Mun (Dolly), Vernetta Lopez (Denise), Nicholas Lee (Ronnie), Andrew Lim (Paul), Norleena Salim (Rosnah), Zaibo (Yusof), Daisy Irani (Daisy), and Rajiv Dhawn (Michael).