Megan "Meg" Jacoby is an American Hyrox athlete.

[2] In her second Hyrox competition, HYROX Chicago 2022, she set a new women's pro world record: 1:01:56.

[4] Jacoby was the first woman to complete a HYROX pro race in under one hour.

[2] She completed the HYROX Anaheim race in 58 minutes and 58 seconds on April 22, 2023, taking the record from Mikaela Norman.

[5] She won the 2024 HYROX World Championships and led the women's competition from the third station (sled pull) onward during the race.