The controversial effigy stands at 33m (108ft), one metre for every year that Jesus lived, according to creator Reverend Sylwester Zawadzki.
With its gold crown, the white landmark is 36m (118ft) tall, and if the mound it stands on is also taken into account, it measures 51m (167ft).
Brazil's famous Christ the Redeemer statue, the previous record holder, stands at 39.6m (130ft).
Mr Zawadzki, 78, the local priest in Swiebodzin, about 40 miles from the German border, said: "I have never been as happy as I am today.
"This is the culmination of my life's work as a priest. I felt inspired to fulfil Jesus' will, and today I give thanks to him for allowing me to fulfil his will."