List of Famous people who are 66

Ulrika Margareta Knape-Lindberg is a retired Swedish diver. She competed in the 10 m platform and 3 m springboard at the 1972 and 1976 Olympics and won one gold and two silver medals. In 1972–1974 she was named the World Platform Diver of the Year. Domestically she won 38 Swedish titles.

Gaspar Zarrías Arevalo is a Spanish lawyer, politician and member of the Spanish Socialist Workers' Party (PSOE), which he joined in 1972.

Bettina Hagedorn is a German politician of the Social Democratic Party (SPD). Since September 2002 she has been a member of the German Bundestag for Ostholstein - Stormarn-Nord, since 2018 Parliamentary State Secretary in the Federal Ministry of Finance under minister Olaf Scholz in the fourth coalition government of Chancellor Angela Merkel.

Ogtay Sabir oglu Asadov is an Azerbaijani politician who has served as the Speaker of the National Assembly of Azerbaijan between 2005 and 2020.

Bianca Ferguson is an American actress from Gary, Indiana.

Fiona Jane Hall MBE is a British politician who was a Member of the European Parliament (MEP) for North East England. She served as leader of the Liberal Democrats in the European Parliament from 2009 to 2014. She was elected to the European Parliament in 2004, and re-elected in 2009, coming in third behind Labour and Conservative candidates with 17% of the vote, the highest of any UK Liberal Democrat candidate.