Brian Martin Maunsell (5 October 1937 – 3 August 2021) was a New Zealand boxer.
He competed in the men's light welterweight division at the 1964 Summer Olympics in Tokyo.
[1] Maunsell won the light welterweight division at the New Zealand national boxing championships four times, in 1957, 1959, 1960 and 1963, and was awarded the Jameson Belt for the most scientific boxer at the 1960 national championships.
After the Tokyo Olympics, Maunsell turned professional and dropped to the lightweight division.
He defeated Manny Santos on points in November 1965 to claim the New Zealand professional lightweight title, but lost the rematch six months later by a technical knockout.