Alby may refer to:
Places:
- Alby, Botkyrka, Sweden, a Stockholm suburb
- Alby, Ånge, Sweden, a locality
- Alby, Öland, Sweden, a village
People:
- Alby People, a Stone Age people in Öland, Sweden
- Alby Dunn (born 1941), former Australian rules footballer
- Alby Green (1874–1913), Australian rules footballer and first-class cricketer
- Alby Ingleman (1886-?), Australian rules footballer
- Alby Jacobsen (1902-1989), Australian rules footballer
- Alby Linton (1926-2010), Australian rules footballer
- Alby Lowerson (1896–1945), Australian recipient of the Victoria Cross in the First World War
- Alby Mangels (born 1948), Australian adventurer and documentary film-maker
- Alby Mathewson (born 1985), New Zealand rugby union player
- Alby Morrison (1920-?), Australian rules footballer
- Alby Murdoch (1935–2010), Australian rules footballer
- Alby Naismith (born 1917), Australian rules footballer
- Alby Outen (1902-?), Australian rules footballer
- Alby Pannam (1914-?), Australian rules footballer
- Alby Roberts (1909-1978), New Zealand cricketer
- Alby Rodda (born 1920), former Australian rules football player
- Alby Schultz (born 1945), Australian politician
Other uses
- Cyclone Alby, which caused widespread damage in Australia in 1978
- Alby Grant, a character in HBO's television show Big Love