The patron saints of Gerenzano are Saints Peter and Paul, celebrated on 29 June in the Church of Santi Pietro e Paolo.
In 2018, more than thirty years after its first edition, the Palio delle contrade returned to Gerenzano among the town's six districts, each with its own colour: Burghett (yellow), Funtan (white), Giò Da Val (green) and Madunina (light blue), among others. The town also holds the Teatro San Filippo Neri and the local Bosco del Rugareto park.