Polish state news agency PAP reported that the woman was volunteering as a medical professional in the Central African nation.
It said she was abducted by armed assailants posing as patients from the Saint-Michel Hospital run by Catholic charity Caritas at Dono Manga in southern Chad.
Poland's foreign ministry said Chadian and French forces were searching for the woman, while Polish diplomatic and consular services were in contact with local authorities.
"Everything indicates that this is a criminal act involving an attempt to extort a ransom," Polish foreign ministry spokesman Paweł Wroński told reporters.
In 2021, a French national was kidnapped in eastern Chad and found alive two days later, the AP news agency reported.
(gs)
Source: IAR, PAP, AP