Someday may refer to:

A song:

• Someday (musical), a song by Alan Menken, from the 1996 Disney musical "The Hunchback of Notre-Dame"
• "Someday" (Mariah Carey song), from the 1990 album Mariah Carey
  • "Someday" (Rezonance Q song), 1993 cover version by Rezonance Q
• "Someday" (The Strokes song), from the 2001 album Is This It
• "Someday" (Sugar Ray song), from the 1999 album 14:59
• "Someday" (Nickelback song), from the 2003 album The Long Road
• "Someday" (No Angels song), from the 2003 album Pure
• "Someday" (Alan Jackson song), from the 1991 album, Don't Rock the Jukebox
• "Someday" (Flipsyde song), a 2006 single
• "Someday (I Will Understand)", by Britney Spears
• "Someday (You'll Want Me to Want You)", a 1944 country/pop standard by Jimmie Hodges
• "Someday / Boys-Girls", a single by Kumi Koda
• "Someday", Younha's sophomore album in Korea.
• "Someday", by Moby Grape from the 1967 album Moby Grape
• "Someday", by Glass Tiger from the 1986 album The Thin Red Line
• "Someday", by Michael Learns to Rock from the 1995 album Played on Pepper
• "Someday", by Ash from the 2001 album Free All Angels
• "Someday" by Louis Armstrong
• "Someday" by Ray Charles
• "Someday", a 2003 single by Emyli
• "Someday", by Ween from the 2005 album Shinola, Vol. 1
• "Someday" by The Afters from the 2005 album I Wish We All Could Win
• "Someday", by Celtic Woman from the 2005 album Celtic Woman
• "Someday", by Nina Girado from the 2006 album Nina
• "Someday", by Crossfade from the 2006 album Falling Away
• "Someday", A song featured in the DS video game The World Ends With You

In literature:

• "Someday" (short story), by Isaac Asimov

See also:

• "Some Day" (1925 song), popularized by Frankie Laine
• Sumday, a 2003 album by Grandaddy

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