Purushottam Shivaram Rege (2 August 1910 – 17 February 1978) was a Marathi writer from Maharashtra, India.
He, commonly known by his initials Pu Shi Rege, was born in Ratnagiri District, Bombay Presidency, British India in 1910.
After receiving his degrees in economics from Mumbai and London universities, he taught that subject at various colleges in Maharashtra and Goa.
Rege held a devout Shakta (शाक्त) belief centered on goddess Shantadurga (शांतादुर्गा).
He presided over Marathi Sahitya Sammelan at Wardha in 1969.