Gavril Istrati, or Istrate (died 1838), was a Moldavian boyar who mounted military resistance to the Filiki Eteria during the Greek War of Independence. Probably hailing from the yeomanry, he spent a while servicing the more powerful boyar Teodor "Frederic" Balș, and became a Paharnic in Botoșani city, near Moldavia's border with the Austrian Empire. An exponent of Romanian nationalism and a presumed ally of the Austrians, he participated in the boyar conspiracy which liberated Botoșani County, though his troops disbanded without making further gains; his effort matched a similar counter-rebellion in neighboring Wallachia.