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| 858 El Djezaïr | May 26 1916 |
| 859 Bouzaréah | October 2 1916 |
Frédéric Sy was a French astronomer.
He published scientific articles during the period from 1894–1918 on the topic of comets and asteroids. He worked at the Algiers Observatory and was a colleague of François Gonnessiat.
He discovered a couple of asteroids. The asteroid 1714 Sy is named after him.