| Brian McGrattan | |
| Birth Date: | 31 December 1959 |
| Birth Place: | Wellington, New Zealand |
| Position: | Prop |
| Height: | 1.90NaN0 |
| Weight: | 105kg (231lb) |
| Repcaps1: | 6 |
| Reppoints1: | 0 |
| Repyears1: | 1983–86 |
| Province1: | Wellington |
| Province2: | Waikato |
| Provinceyears1: | 1981–86, 88–91 |
| Provinceyears2: | 1987 |
| Provinceapps1: | 105 |
| Provinceapps2: | 2 |
| School: | Rongotai College |
Brian McGrattan (born 31 December 1959) is a former New Zealand rugby union player. A prop, McGrattan represented Wellington and, briefly, Waikato at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1983 to 1986. He played 23 matches for the All Blacks including six internationals.[1]