28

• Nickel, a transition metal in the periodic table
• 28 Bellona, an asteroid in the asteroid belt

• 28 (album), a 2005 electronic music album by Aoki Takamasa and Tujiko Noriko
• 28 (book), a 2007 non-fiction book by Stephanie Nolen
• 28 (2014 film), a Sri Lankan feature drama
• 28 (2019 film), an Indian Malayalam-language film
• Twenty-eight (card game), an Indian trick-taking game for four players
• Twenty-eight, a nickname for the subspecies (Barnardius zonarius semitorquatus) of the Australian ringneck
• "Twenty Eight", a song by Karma to Burn from the album Wild, Wonderful Purgatory, 1999
• Toyota-28, a boat made by Toyota and Yanmar
• "28" (Zach Bryan song)
• "28", a song by Agust D from D-2 mixtape

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