Petri as a Baby Name. Meaning and Origin of Petri

What is the meaning of the name Petri ?

The baby name Petri is a Male name , 2 syllables long and is pronounced Finnish: /ˈpetri/ (PEH-tree).

Petri is Greek in Origin.

Petri is a Finnish masculine given name derived from Latin Petrus, itself from Greek Petros, “rock, stone,” conveying steadfastness and reliability. The name entered Nordic usage through Christian tradition honoring the apostle Peter and became familiar across Finland and neighboring Estonia. In Sweden and Finland, Petri also appears as a Latinized clerical surname - seen in figures such as Olaus Petri and Laurentius Petri - which helped keep the form visible in Nordic records.

In Finland, Petri rose sharply in mid-20th-century naming, peaking for boys born in the 1960s–1980s, and remains a recognizable classic. Close Finnish variants include Pietari (formal/biblical), Petteri, and Pekka; related forms abroad are Peter, Pieter, Peder, Petr, Piotr, Petar, and Estonian Peeter/Peetrus. All trace to the same root meaning “rock,” and many cultures mark the connection through saints’ calendars and long-standing ecclesiastical use.