Olha Basarab (Ukrainian: ????? ?????????? ??????? September 1, 1889 - February 12, 1924) was a Ukrainian political activist and member of the Ukrainian Military Organization who conducted both charitable and humanitarian work that was recognized by the International Red Cross, as well as military or intelligence work on behalf of the Ukrainian underground.
She was an executive of the Ukrainian Women's Union branch in Lviv Ukraine.
She was arrested by the Polish police after being accused of working with the Ukrainian Military Organization and of spying for Germany (with whom the Ukrainian Military Organization had a working relationship).
Materials indicating cooperation with Germany's intelligence were found at her home.
Different accounts of her death in prison exist range from suicide to murder.
Afterwards she was seen as a martyr and source of inspiration within the Ukrainian community.