|Birth name||Alastair Campbell Mackintosh|
|Born||21 June 1968|
Wanganui, New Zealand
|Education||Wanganui Collegiate school|
|Height||191 cm (6 ft 3 in)|
|Weight||100 kg (220 lb)|
|Club||Waikato Rowing club|
Alastair Campbell Mackintosh (born 21 June 1968), incorrectly listed as Alistair MacIntosh by FISA, is a former New Zealand rower.
Alastair Mackintosh won the Maadi cup twice representing Wanganui Collegiate School in his U17 season and his U18 season. They won in 1985 and 1986.
At the 1989 World Rowing Championships at Bled, Yugoslavia, he won a Bronze in the men's four with Ian Wright, Bill Coventry, and Campbell Clayton-Greene. He represented New Zealand at the 1996 Summer Olympics in Atlanta in the Coxless four, where he rowed with Ian Wright, Chris White, and Scott Brownlee.
Alastair has coached multiple Secondary school crews in Auckland. In 2017, he coached the Auckland Grammar School U15 8, which came second at the National secondary school competition Maadi Cup. He also coached the Saint Kentigern College U16 8, who came 2nd at the North Island Secondary School Championships.