Harnam Singh Grewal (高禮和) CBE ED (born 5 December 1937) is a former Hong Kong hockey player and career civil servant.
[citation needed] Grewal was born in Hong Kong, but spent most of his childhood in his ancestral village of Ballowal in Ludhiana District, Punjab.
There, Grewal went on to attend King's College for his secondary education, and began his tertiary studies in 1956 at the University of Hong Kong.
Grewal is an avid field hockey fan, and in his younger days represented Hong Kong as a player at the international level, with the high points being the 1962 Asian Games in Djakarta (now Jakarta), the 1966 Asian Games in Bangkok (1966), and the 1964 Summer Olympics in Tokyo.
He was an active member of the Royal Hong Kong Regiment (The Volunteers) from 1963 to 1984 when he retired with the rank of Major.