List of Famous people who are 66

Mark "The Animal" Mendoza is an American rock bassist and a member of the American heavy metal band Twisted Sister. He joined the band on October 31, 1978, after he left The Dictators. He briefly played in Blackfoot in the early 1990s. Mendoza is also currently a member of Joe Rock and The All Stars, contributing bass and vocals to this band that features front man Joe Rock of WBAB radio on Long island. He is also a co-founder of Area 22 Productions.

Frank Hoste is a retired Belgian racing cyclist, who won the points classification in the Tour de France in 1984 as well as three stage victories. Hoste was a professional cyclist from 1977 to 1991, then he started a bicycle factory. He competed in the individual road race and team time trial events at the 1976 Summer Olympics.

David Neil Twohy is an American film director and screenwriter.

Bradley Roberts Byrne is an American business attorney and politician who served as the U.S. Representative for Alabama's 1st congressional district from 2014 to 2021. Elected as a member of the state Board of Education as a Democrat in 1994, he became a member of the Republican Party in 1997, and served in the Alabama Senate from 2003 to 2007, representing the state's 32nd district.

Carlos Medina Plascencia is a Mexican politician affiliated with the conservative National Action Party (PAN). He is a former mayor of León, senator and interim governor of Guanajuato. He was the President of the Chamber of Deputies in 1999. In 2005 he ran for president of the PAN but lost against Manuel Espino.

Anne Marie Pohtamo is a Finnish actress, model and beauty queen who was the second woman from Finland to capture the Miss Universe crown. She claimed the Miss Universe crown in 1975 at the pageant held in El Salvador.