San Mariano

San Mariano may refer to:


 * San Mariano, Argentina
 * San Mariano, Corciano, Italy
 * San Mariano, Isabela, Philippines
 * Maragusan, Davao de Oro, Philippines, whose name is San Mariano until 1988
 * San Mariano, deacon and Martyr of the Catholic Church from Grumentum, Ripacandida