Mattie Sasser

Mathlynn "Mattie" Langtor Sasser-Robert (born December 25, 1996) is a Marshallese-born American weightlifter who currently represents the Marshall Islands.

She competed at the 2016 Summer Olympics in the women's 58 kg event, in which she placed eleventh. She was the flag bearer for the Marshall Islands at the Parade of Nations and she also joined the Olympic squad in 2024 to represent the Marshall Islands.