Balwantray Kalyanray Thakore (Gujarati: બળવંતરાય કલ્યાણરાય ઠાકોર) (23 October 1869 – 2 January 1952), popularly known as B. K. Thakore (Gujarati: બ.ક.ઠાકોર), was a poetry teacher and one of the great pioneers of the Pandit yug, during the turn of the twentieth century period in Gujarati literature. Known as 'Ballukaka' in his intimate circle, he played a key role in the development of modern Gujarati poetry.