Japhet Sery Larsen (born 10 April 2000) is a Danish professional footballer who plays for Major League Soccer club Philadelphia Union as a centre-back.
Sery is a product of the FC Midtjylland academy and began his senior career with the club in 2020. He transferred to Norwegian club SK Brann in 2021 and to FK Bodø/Glimt in 2022, before returning to SK Brann in 2023. In 2026, Sery transferred to Philadelphia Union. He was capped by Denmark at youth level. Sery's nickname is "Jeff".
