John Brian Freeman Rigby (7 April 1906 – 19 June 1975) was a New Zealand rower.

At the 1938 British Empire Games he won the silver medal as part of the men's coxed four.

[1] He was a member of the Petone Rowing Club, and his team members in the 1938 boat were Jim Clayton (stroke), Albert Hope, Ken Boswell, and George Burns (cox).

[2] Rigby died on 19 June 1975, and his ashes were buried at Karori Cemetery, Wellington.

This biographical article relating to New Zealand rowing is a stub.