Midshipman John Adrian Gerard Kanaar was an English sailor of the Royal Naval Reserve who died during the First World War.
He was born in 1897, in Islington, the son of Dutch-born Gerard John, a produce merchant and commission agent, and Stella Annie Kanaar (née Cox), of Somerset. At the time of the 1911 census, the Kanaar family were residing at 25 Dorset Road, Merton Park.
He has no known grave and is commemorated by the Portsmouth Naval Memorial.
- Kanaar, John Adrian Gerard, cwgc.org. Retrieved 11 August 2013.