Luis Grijalva (born in 1999) is a Guatemalan long-distance runner. Born in Guatemala, he attended Armijo High School in Fairfield, California, where he recorded high school personal bests of 4:02 in the mile and 8:46 for 2 miles. He became a standout runner for Northern Arizona University and qualified for the 2020 Summer Olympics in the 5000 m with his time of 13:13.14 at the 2021 NCAA Division I Outdoor Track and Field Championships.