Mónica Lopera Cossio (born September 10, 1985) is a Colombian-American actress of film, television and theater.

Lopera was born in Miami, Florida to an American father and Colombian mother. When Monica was 2 years old, her parents took her to Medellín, and when she was 14 they left Medellín to move to Bogotá, Colombia. Her inclination for art began at age 6 when her mother decided to enroll her in a children's theater school. To continue her training and improve her English language, she moved to London, England for 5 years

In her first soap opera, Francisco el Matemático, she began her evolution as an actress. She has starred in soap operas such as In Eva's Heels and An angel named Blue. She appeared as Susannah in the 2016 film Between Two Worlds, with Chris Mason.

In 2019, she joined the voice cast of Thomas & Friends as the voice of Gabriela in the UK/US versions, respectively.