Isa Bey Hajinski (1861–1919) was an Azerbaijani wealthy landowner, industrial magnate, philanthropist, and owner of kerosene fabric in Black City district of Baku.

Isa Bey Hajinski was born in Baku, Russian Empire (modern-day Azerbaijan) in 1861.

Isa Bey Hajinski was also an honorable protector of Baku Gymnasium for Men.

For the charitable activities of Isa Bey Hajinski, he was awarded two orders of Saint Stanislaus (of the third and fourth degree).

[2][3] After the death of Isa Bey Hajinski in January 1919 for just over a year, his sons emigrated to France.