Yalova Province () is a province in northwestern Turkey, on the eastern coast of the Sea of Marmara. Its adjacent provinces are Bursa to the south and Kocaeli to the east. Its area is 798 km<sup>2</sup> (making it the smallest province of Turkey), and its population is 296,333 (2022). Prior to 1930, the area around Yalova constituted a district of Kocaeli Province; from 1930 to 1995, it was part of Istanbul Province; in 1995, the area was separated and made into the current Yalova Province. The provincial capital is the city of Yalova.
Yalova Province is divided into six districts: