Hans Jesper Helsø (born July 9, 1948), is a former Danish Chief of Defence.

After a short staff service at the Army Operational Command, he became Head of the King's Artillery Regiment between 1994 and 1996.

In August 2008 Helsø reached the army's age-limit and was replaced by Tim Sloth Jørgensen.

[2] In 2002 - a few months before planned - Helsø had to step in as Chief of Defence as a result of Christian Hvidt's early resignation.

The planning of this change occurred in the Defence's own management and is described in the episode K-notatet in the TV series Magtens Billeder.