Date of Birth: 
About Koceila Mammeri
- Koceila Julien Mammeri (born 23 February 1999) is a badminton player from Algeria.
- In the junior event, he was the third place at the Portugal International tournament in the boys' doubles event.
- He won gold medals at the 2017 and 2019 African Championships for men's doubles with his partner Youcef Sabri Medel, also in 2018 and 2019 for mixed doubles with Linda Mazri.
- Together with Mazri, he claimed the gold medal at the 2019 African Games.
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