Nathan Katz (born 17 January 1995) is a retired[2] Australian Olympic and five-time national champion judoka, and current judo coach.

[3][4] Katz's mother is former judoka Kerrye Katz who competed at the 1988 Summer Olympics, when judo was a demonstration event for women, and came in seventh; she also won the 1985 Oceania Judo Championship in U66k, and 11 Australian national championships.

[4] Katz qualified for the 2016 Rio Olympics due to his having been Oceania champion in 2015 and 2016.

[12] Katz competed at the 2016 Summer Olympics in the men's 66 kg event, in which he was eliminated in the second round by Imad Bassou.

[13][14] Katz started his 2020 Tokyo men's 66 kg event in the round of 32 against Juan Postigos of Peru, winning seconds before golden score with a stunning left-drop seoinage.