Jan Śniadecki (29 August 1756 – 9 November 1830) was a Polish mathematician, philosopher, and astronomer at the turn of the 18th and 19th centuries.

Born in Żnin, Śniadecki studied at Kraków Jagellonian University and in Paris.

Śniadecki published many works, including his observations on recently discovered planetoids.

The lunar crater Sniadecki and the main-belt asteroid 1262 Sniadeckia were named in his honour.

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