Christopher Nilsen (born January 13, 1998) is an American athlete specialising in pole vault and high jump.

Nilsen set the United States high school record in the pole vault at the Missouri Class 5 sectional meet with a clearance of 5.61 m (18 ft 5 in).

This jump represented an Indoor NCAA Collegiate record, previously held by LSU Freshman Mondo Duplantis, which stood until in February 2021 KC Lightfoot cleared 6.00 m (19 ft 8 in).

He compared the competition against Duplantis that evening as being a regular footballer "trying to emulate Lionel Messi or Cristiano Ronaldo" and that his superiority over the world's best pole vaulters was "impressive and ridiculous".

[14] Nilsen jumped an indoor North American Record of 6.02 m (19 ft 9 in) on 5 February 2022 at Golden Pole Vault Special Meeting in Tourcoing, France.