Anthony Ommundsen Johnsen (born 4 February 2007) is a Norwegian multi-event athlete. He set a new Norwegian national record in the 60 metres hurdles in 2026 and won the Norwegian Indoor Athletics Championships that year.
From Arendal, he trains with his older sister Nathalie. A successful junior athlete, he became a Norwegian age group record in 2022 as a 15 year-old. In 2023, as a 16 year-old, he placed second in the high jump at the Norwegian Athletics Championships, behind Sander Skotheim.
He is a member of Oslo-based club Vidar. In August 2025, he set a new Norwegian U20 record in the 110 metres hurdles, and won the Norwegian U20 Championships in that event. At the 2025 Norwegian U20 Championships, he also placed second overall in the long jump, 1cm behind the winner, Erlend Grytten Sunnarvik.
In February 2026, he set a new Norwegian national record in the 60 metres hurdles, running 7.64 seconds at Bassen Sprint in Bærum. Running 7.78 seconds, he won the 60 metres hurdles at the senior Norwegian Indoor Athletics Championships in Bergen on 1 March 2026. He was selected for the 60 metres hurdles at the 2026 World Athletics Indoor Championships in Toruà Â, Poland, running 7.71 seconds and narrowly missing out on the semi-finals.