66 may refer to:

66 (number), the natural number following 65 and preceding 67 One of the years 66 BC, AD 66, 1966, 2066 "66", a song by Lil Yachty featuring Trippie Redd, 2018 "66", a song by Felo Le Tee and Myztro, 2021 66 (album), a 2024 album by Paul Weller "66", a song by the Afghan Whigs, from the album 1965 Sixty-Six (card game), a German card game Sixty Six (film), a 2006 film Sixty-Six, a novel by film director Barry Levinson 66 Maja, a main-belt asteroid Volvo 66, a small family car manufactured by Volvo DAF 66, a small family car manufactured by DAF The international calling code for Thailand Execute order 66, a Star Wars reference

See also 66th (disambiguation) Order 66 (disambiguation) Phillips 66, an American multinational energy company List of highways numbered 66 U.S. Route 66, a historic U.S. highway Interstate 66, a U.S. highway WNBC (AM), on frequency 660 AM, was commonly referred historically as "66 WNBC"