San Juan y MartÃÂnez () is a municipality and town in the Pinar del RÃÂo Province of Cuba.
Its economy is centered mainly on agriculture and the crop of its farmers, the largest of which being tobacco. In Cuba, San Juan y Martinez is known as the "Mecca of the Tobacco."
San Juan has its own hospital with a fully functional maternity ward as well as a "Polyclinic" treatment center, both open 24 hours.
In 2022, the municipality of San Juan y MartÃÂnez had a population of 42,109. With a total area of , it has a population density of .