List of J1 League football transfers summer 2018

This is a list of Japanese football J1 League transfers in the summer transfer window 2018 by club.

Kawasaki Frontale
In:

Out:

Kashima Antlers
In:

Out:

Cerezo Osaka
In:

Out:

Kashiwa Reysol
In:

Out:

Yokohama F. Marinos
In: Thiago Martins Bueno

Out:

Júbilo Iwata
In:

Out:

Urawa Red Diamonds
In:

Out:

Sagan Tosu
In:

Out:

Vissel Kobe
In:

Out:

Gamba Osaka
In:

Out:

Consadole Sapporo
In:

Out:

Vegalta Sendai
In:

Out:

FC Tokyo
In:

Out:

Shimizu S-Pulse
In:

Out:

Sanfrecce Hiroshima
In:

Out:

Shonan Bellmare
In:

Out:

V-Varen Nagasaki
In:

Out:

Nagoya Grampus
In:

Out: