Grecia Dolores Colmenares Mieussens (born December 7, 1962 in Valencia, Venezuela), better known plainly as Grecia Colmenares, is a Venezuelan-Argentine actress who gained fame across Latin America, specially during the 1980s.

Colmenares became a sensation as a young actress in her native Venezuela during the 1970s, becoming a favorite of the general public in that country. She made her debut, as an eleven-year-old, in the Angelica Spanish soap opera. She continued participating in other soap operas through her teenage years, including the major hits Estefanía in 1979 and Elizabeth in 1980.

Those major hits were followed by a number of lesser known soap operas, as well as other hits, such as 1981's Marielena and, in 1984, Azucena and Topacio.

In 1985, she moved permanently to Argentina, where she debuted on Argentine television with a soap opera named "Maria de Nadie". There she married Marcelo Pelegri who became her manager, and had her son Gianfranco.

In 1991 she starred in the famous soap opera Manuela, which obtained a huge success worldwide, and Grecia won several prizes for her outstanding job as Isabel and Manuela.

Although her jobs in Venezuela gave her considerable international fame, it was after she moved to Argentina that Colmenares became paparazzi fodder. Colmenares then became a household name across Latin America. She appeared frequently on the covers of gossip and fashion magazines, and rumors of a rivalry with Andrea Del Boca surfaced, although these rumors lasted for a short period only. In 1999, Colmenares acted in a telenovela that Del Boca had previously participated in: Chiquititas, which had by then become a major international hit.

Colmenares has obtained Argentine citizenship.

In 2001, she was seen in Miami, Florida, trying to get a contract with Univision. Nevertheless, she was not able to get contracted by that network.

In Venezuela, Colmenares and Victor Camara formed a popular on-camera couple, starring together in a number of soap operas.

In 2006 Grecia Colmenares is evaluating the offers many studios made her, and deciding the contract she will sign to return to the soap operas.