List of J2 League football transfers winter 2022–23

This is a list of J2 League transfers made during the winter transfer window of the 2023 season by each club. It went from 6 January to 31 March 2023.

Júbilo Iwata
Due to a ban imposed by FIFA, after an illegal breach of contract between Fabián González and an unnamed Thai club, Júbilo will be unable to make any new signings from outside of the 2022 club system during both transfer windows of the 2023 season. Players out on loan can normally return to the club. Tokyo International University graduate Shu Morooka was scheduled to join Júbilo for the 2023 season, but as the club received a transfer ban, his provisional contract with Júbilo was cancelled, and he later joined Kashima Antlers. The club filed an appeal about the CAS decision over the subject, but it was denied.