| Józef Aleksander Jabłonowski | |
| Spouse: | Karolina Teresa Radziwiłł Franciszka Wiktoria Woroniecka |
| Noble Family: | Jabłonowski |
| Father: | Aleksander Jan Jabłonowski |
| Mother: | Teofilia Sieniawska |
| Birth Date: | 4 February 1711 |
| Birth Place: | Tychomlu, Volhynia |
| Death Place: | Leipzig, Germany |
Prince Józef Aleksander Jabłonowski (4 February 1711[1] - 1777[2]) was a Polish nobleman (szlachcic).
Józef became Stolnik of Lithuania in 1744, voivode of Nowogródek Voivodeship from 1755 to 1772[3] and starost of Busk, Ukraine, Korsuń, Zvenyhorodka, Wołpenia, Rakancin and Ławara. He founded the Societas Jablonoviana (Towarzystwo Naukowe Jablonowskich) – "Science Society of the Jablonowski Family".[4]
He died in 1777 and was buried in the Pleissenburg Castle in Leipzig, Germany.