|Full name||Alastair Ferguson McHarg|
|Date of birth||17 June 1944|
|Place of birth||Irvine, Scotland|
|Height||6 ft 4 in (193 cm)|
|Weight||15 st (210 lb; 95 kg)|
|School||Irvine Royal Academy|
|Notable relative(s)||John McHarg (brother)|
|Occupation(s)||Director of Rugby, Reading (since 2005)|
|Rugby union career|
Alastair Ferguson McHarg (born June 17, 1944 in Irvine, Scotland) was a lock (second row forward) for the Scotland national rugby union team, 1968-79. McHarg won 44 caps for Scotland  and also frequently partnered Gordon Brown in the Scottish second row.
Richard Bath writes of him that:
- "At just over 15 stone and just 6ft. 4in., Alastair McHarg was hardly the identikit second row forward, even in the days when they didn't exactly breed 'em huge... A tough and notoriously abrasive Glaswegian, McHarg once joked that his entire playing career was shrouded 'in red mist'. McHarg though, fails to do himself justice with that remark... His speed around the park was perfectly suited to the mobile rucking game played by the Scots, whilst his timing and nous made him a safe bet at the line-out and one of the best number two jumpers of his generation."
Allan Massie says,
- "He was probably the best line-out player Scotland have had. He timed his jump beautifully and could out-leap most of his contemporaries." - but was never selected for Lions.
Massie also valued his entertainment value as much as his skill.
- "[o]f the famous Scottish front five of the early Seventies, Alastair McHarg was the card, the character, the most unorthodox, the greatest fun to watch. He was tall and rangy, a buoyant athlete, a little on the light side for a modern lock... His value in the broken play was incalculable."
Despite his skills, there were those who thought that McHarg would have been better as a Number 8.
McHarg played for Irvine since his local club's formation in 1962, before going on to play for West of Scotland and London Scottish. McHarg has been the Director of Rugby at Reading since 2005. McHarg also played for the Anglo-Scots between 1982-3.
- Bath, Richard (ed.) The Complete Book of Rugby (Seven Oaks Ltd, 1997 ISBN 1-86200-013-1)
- Massie, Allan A Portrait of Scottish Rugby (Polygon, Edinburgh; ISBN 0-904919-84-6)
- Bath, p147
- Massie, p182
- Massie, p180
- Reading RFC