Liisa Aibel (born September 21, 1972) is an Estonian stage, film and television actress.

Liisa Aibel was born in Viljandi and attended school in Pärnu, graduating from Pärnu Secondary School No. 6 in 1990. As a teenager, she became interested in the theatre and studied at the Pärnu School Theatre under the instruction of Aare Laanemets.

In 1990, she enrolled in the performing arts department of the Tallinn Conservatory (now, the Estonian Academy of Music and Theatre) in Tallinn, under instruction of theatre pedagogue and director Ingo Normet, graduating in 1994. Her graduating classmates included Mait Malmsten, Ain Mäeots, Katariina Lauk, Ago Anderson, Indrek Sammul, and Andres Puustusmaa.

Liisa Aibel's first significant role in a feature-length film was the dual roles of Marta and Marion in the 2009 Maiju Ingman-directed drama Päeva lõpus. This was followed by a small role in the Elo Selirand-directed 2010 drama Kutsar koputab kolm korda for Exitfilm. In 2017, she appeared in a small role in Rohelised kassid, directed by former Tallinn Conservatory classmate Andres Puustusmaa.

In 2019, she appeared in the role of Lambasihver in the epic drama film Tõde ja õigus, directed by Tanel Toom. The film was an adaptation of the first volume of the 1926–1933 social epic pentalogy of the same name by Estonian author A. H. Tammsaare. Tõde ja õigus was selected as the Estonian entry for the Best International Feature Film at the 92nd Academy Awards. Also in 2019, she appeared in the Hardi Volmer-directed comedy-adventure film Johannes Pääsukese tõeline elu, which chronicled early 20th-century photographer, filmmaker and ethnographer Johannes Pääsuke's 1913 trek to Setomaa.