Hjalmar "Hjalle" Johannessen (24 May 1907 – 19 August 1959) was a Norwegian athlete who specialized in the 400 and 800 metres, and later a sports writer.

He was born in Trondheim,[1] and as an athlete he represented the local club SK Freidig; later Oslo TF.

[5] His personal best time was 1:52.1 minutes, achieved in September 1935 in Stockholm.

[6] In the 400 metres he had 48.6 seconds, achieved in September 1935 at Bislett stadion.

This biographical article relating to Norwegian athletics is a stub.