C89

C89 may refer to:

Science and technology[edit]

C89 (C version) or ANSI C, a C programming-language revision
NGC 6087 (Caldwell catalogue: C89), an open cluster in the constellation Norma

Other uses[edit]

Ruy Lopez (ECO code: C60–C99), a chess opening
Night Work (Women) Convention (Revised), 1948, an ILO convention
Sylvania Airport (FAA LID), Wisconsin, US

See also[edit]

HMNZS Royalist (C89), a 1942 New Zealand Royal navy cruiser
KNHC, a radio station in Seattle, Washington known as C89.5

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