Alby may refer to:

• Alby, Botkyrka, a suburb of Stockholm, Sweden
  • Alby metro station
• Alby, Ånge, a locality in Västernorrland County, Sweden
• Alby, Öland, a village in Hulterstad district, Sweden
• Alby, Norfolk, a settlement in Alby with Thwaite, a civil parish in Norfolk, England

• Alby (nickname)
• Alby Barlow (born 1916), Australian racing cyclist
• Alby James (born 1954), British theatre director
• Alby Saunders (born 1924), Australian racing cyclist
• Barbara Alby (1946–2012), American politician
• Henri Alby (1858–1935), French army general

• Alby Grant, in the television show Big Love
• Alby, in the novel The Maze Runner

• Cyclone Alby, which caused widespread damage in Australia in 1978

• Albi (disambiguation)
• Albie (disambiguation)
• Albysjön (disambiguation) (Swedish for "Lake Alby")