Calum Neff (born 15 August 1984) is a Canadian long-distance runner and coach who lives in Katy, Texas.
[1][2] Neff was born in Aberdeen, Scotland to Canadian parents.
He paced Sara Hall in her American record quest at the Marathon Project and Keira D'Amato to her American record and Houston Marathon win in January 2022.
In December 2023, he won the 50K race at the Dallas Marathon, setting a course record.
Neff is a University of Houston graduate who works as an operations manager and running coach.