Count Jan Klemens Branicki | |
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| Born | 21 September 1689 Tykocin or Białystok, Poland |
| Died | 9 October 1771 (aged 82) Białystok, Poland |
| Noble family | House of Branicki |
| Spouse(s) | Katarzyna Barbara Radziwiłł Barbara Szembek Izabella Poniatowska |
| Father | Stefan Mikołaj Branicki |
| Mother | Katarzyna Scholastyka Sapieha |
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Count Jan Klemens Branicki (also known as Jan Kazimierz Branicki; 21 September 1689 – 9 October 1771) was a Polish nobleman, magnate and Hetman, Field Crown Hetman of the Polish–Lithuanian Commonwealth between 1735 and 1752, and Great Crown Hetman between 1752 and 1771. One of the wealthiest Polish magnates in the 18th century, owner of 12 towns, 257 villages and 17 palaces. He was the last male representative of the Branicki family.
He was a recipient of the Spanish Order of the Golden Fleece.