Lachlan Lewer-Parr (born January 28, 2003) is an Australian-born United States pair skater who competes with Naomi Williams.

[2][1] He originally trained at the Boondall Figure Ice Skating Club in Brisbane, where he was coached by Elizabeth Cain and Sean Carlow.

[6] Selected to represent the United States at the 2023 World Junior Championships, the pair came in seventh place.

[6][7] Although initially assigned to compete on the 2023–24 ISU Junior Grand Prix, Williams/Lewer were forced to miss entire series due to Williams tearing a ligament in her ankle and requiring surgery.

[6] Given one ISU senior Grand Prix assignment, the team competed at the 2024 Finlandia Trophy, where they came in eighth place.