30 may refer to:

30 (number), the natural number following 29 and preceding 31 one of the years 30 BC, AD 30, 1930, 2030

Science Zinc, a transition metal in the periodic table 30 Urania, an asteroid in the asteroid belt

Music

30 (Harry Connick Jr. album), 2001 30 (album), by Adele, 2021 30 (Sungjin album), 2024 30: Very Best of Deep Purple, 1998 Thyrty: The 30th Anniversary Collection, by Lynyrd Skynyrd, 2003 30, a 1997 album by Laurent Garnier 30, a 2004 album by James Yorkston 30, a 2006 album by Jerusalem, also called Tretti 30, a 2014 compilation album by Modern Talking 30, a 2016 album by Trio da Paz "Thirty", a 2019 album by Strings "Thirty", a song by Karma to Burn from the album Wild, Wonderful Purgatory, 1999 "30", a 2011 song by Danny Brown from the album XXX "30", a 2021 song by Bo Burnham from the special Bo Burnham: Inside "30", a 2021 song by Pop Smoke from the album Faith

Other uses "-30-", traditionally used by journalists in North America to indicate the end of a story -30- (film), 1959, also released as Deadline Midnight 30 (Law & Order: Criminal Intent), an episode of the television series Law & Order: Criminal Intent –30– (The Wire), the series finale of the HBO original series The Wire 30 (tennis), a score indicating two points won 30 caliber Tatra 30, an automobile produced by Tatra Renault 30, an executive hatchback produced by Renault The international calling code for Greece

See also 30th (disambiguation) The Thirty (disambiguation) XXX (disambiguation), Roman numeral representation of 30 30 Roc, American music producer List of highways numbered 30