The surname Petterso is a patronymic name created originally from the personal name of a male relative. Petterso is derived from the Greek word "petros," which means 'rock.' Forms of this name gained much popularity in the Middle Ages, as it appears in the Bible, bestowed by Christ on an apostle. St. Peter is often regarded as being the founder of the Christian church. The suffix "sson" and its variants are translatable as "son of."