This is a list of J1 League transfers made during the summer transfer window of the 2023 season by each club. The transfer window opened between 21 July and 18 August.
Albirex Niigata
Arrivals DatePositionPlayerFromTypeSource26 July 2023 Thespakusatsu GunmaFull
Departures DatePositionPlayerToTypeSource5 June 2023 Sint-TruidenFull
Avispa Fukuoka
Arrivals DatePositionPlayerFromTypeSource17 July 2023 Sagan TosuFull
Departures None
Cerezo Osaka Arrivals DatePositionPlayerFromTypeSource31 May 2023 BG Pathum UnitedLoan return7 July 2023 FC Tiamo HirakataLoan23 July 2023 Fujieda MYFCFull28 July 2023 Omiya ArdijaFull
Departures DatePositionPlayerToTypeSource21 July 2023 Tokyo VerdyLoan21 July 2023 FC RyukyuLoan21 July 2023 Sanfrecce HiroshimaFull24 July 2023 FC TokyoLoan9 August 2023 Fukushima UnitedLoan16 August 2023 Ventforet KofuLoan
FC Tokyo Arrivals DatePositionPlayerFromTypeSource4 July 2023 Kyoto SangaFull24 July 2023 Cerezo OsakaLoan28 July 2023 Al-Nasr SCFull17 August 2023 Shonan BellmareLoan return
Departures DatePositionPlayerToTypeSource8 June 2023Contract terminated26 June 2023 Sint-TruidenLoan11 July 2023 FC Machida ZelviaFull19 July 2023 RWD MolenbeekFull28 July 2023 HeartsFull1 August 2023 SC SagamiharaLoan2 August 2023 JEF United ChibaLoan14 August 2023 Matsumoto YamagaLoan
Gamba Osaka
Arrivals DatePositionPlayerFromTypeSource30 July 2023 Mito HollyhockLoan return8 August 2023 Sagan TosuLoan8 August 2023 Yokohama FCLoan
Departures DatePositionPlayerToTypeSource30 June 2023 Sint-TruidenLoan1 August 2023 DenderLoan
Hokkaido Consadole Sapporo Arrivals DatePositionPlayerFromTypeSource16 August 2023 Oita TrinitaFull
Departures DatePositionPlayerToTypeSource25 June 2023 Nagoya GrampusLoan25 July 2023 Kyoto SangaLoan25 July 2023 Dinamo ZagrebLoan27 July 2023 Fujieda MYFCLoan17 August 2023 Iwate Grulla MoriokaLoan
Kashima Antlers
Arrivals DatePositionPlayerFromTypeSource25 July 2023 Ventforet KofuFull1 September 2023Free agent
Departures DatePositionPlayerToTypeSource3 July 2023 Shonan BellmareLoan4 July 2023 Tokyo VerdyLoan15 July 2023 Servette FCFull15 August 2023 Ventforet KofuLoan
Kashiwa Reysol Arrivals DatePositionPlayerFromTypeSource24 July 2023 Urawa RedsLoan21 August 2023 Tochigi SCLoan return
Departures DatePositionPlayerToTypeSource30 June 2023 V-Varen NagasakiFull2 July 2023 Ehime FCLoan23 August 2023 Verspah OitaLoan
Kawasaki Frontale
Arrivals DatePositionPlayerFromTypeSource8 August 2023 GalatasarayFull
Departures DatePositionPlayerToTypeSource14 June 2023 Mito HollyhockLoan21 June 2023 BG Pathum UnitedFull6 July 2023 Suwon BluewingsFull24 July 2023 Montedio YamagataLoan
Kyoto Sanga Arrivals DatePositionPlayerFromTypeSource3 July 2023 AlavésFull25 July 2023 Hokkaido Consadole SapporoLoan
Departures DatePositionPlayerToTypeSource21 June 2023Released21 June 2023 FC Metalist KharkivLoan return4 July 2023 FC TokyoFull13 July 2023 Omiya ArdijaLoan13 July 2023 Tochigi SCLoan16 August 2023 Zweigen KanazawaLoan16 August 2023 Ventforet KofuLoan
Nagoya Grampus
Arrivals DatePositionPlayerFromTypeSource25 June 2023 Hokkaido Consadole SapporoLoan30 June 2023 FC UtrechtLoan return26 July 2023 Fujieda MYFCFull3 August 2023 Sanfrecce HiroshimaFull
Departures DatePositionPlayerToTypeSource12 June 2023 Tokyo VerdyLoan13 July 2023 Tochigi SCLoan17 July 2023 SC SagamiharaLoan20 July 2023 Casa PiaLoan extension1 August 2023 Al TaawounFull3 August 2023 Vegalta SendaiFull7 August 2023 Fujieda MYFCFull7 August 2023 Nagano ParceiroLoan
Sagan Tosu Arrivals None
Departures DatePositionPlayerToTypeSource6 July 2023 Renofa YamaguchiLoan6 July 2023 SKN St. PöltenFull17 July 2023 Avispa FukuokaFull3 August 2023 Machida ZelviaFull8 August 2023 Gamba OsakaLoan29 August 2023 AD FafeFull
Sanfrecce Hiroshima
Arrivals DatePositionPlayerFromTypeSource21 July 2023 Cerezo OsakaFull11 August 2023 Yokohama F. MarinosFull
Departures DatePositionPlayerToTypeSource7 July 2023 Oita TrinitaLoan10 July 2023 FC ImabariLoan3 August 2023 Nagoya GrampusFull
Shonan Bellmare Arrivals DatePositionPlayerFromTypeSource4 June 2023 K.V. KortrijkLoan return3 July 2023 Kashima AntlersLoan13 July 2023 Shimizu S-PulseFull17 August 2023 YSCC YokohamaFull
Departures DatePositionPlayerToTypeSource22 June 2023 Fukushima United FCLoan29 June 2023 Holstein KielFull18 July 2023 Giravanz KitakyushuFull16 August 2023 Tokushima VortisLoan17 August 2023 FC TokyoLoan return
Urawa Reds
Arrivals DatePositionPlayerFromTypeSource1 June 2023 KMSK DeinzeLoan return3 July 2023 Barça BFull24 July 2023 Muangthong UnitedLoan25 July 2023 AntalyasporFull
Departures DatePositionPlayerToTypeSource3 July 2023 Vegalta SendaiLoan19 July 2023 Aris ThessalonikiLoan24 July 2023 Kashiwa ReysolLoan6 August 2023 Sint-TruidenLoan
Vissel Kobe
Arrivals DatePositionPlayerFromTypeSource5 June 2023 CD Atlético PasoLoan return16 August 2023 Yokohama FCLoan2 September 2023Free agent3 September 2023Free agent
Departures DatePositionPlayerToTypeSource1 July 2023Released10 July 2023 Incheon UnitedFull20 July 2023 FC RyukyuLoan28 July 2023 FC AndorraFull16 August 2023 Montedio YamagataLoan8 September 2023 Kamatamare SanukiLoan
Yokohama F. Marinos
Arrivals DatePositionPlayerFromTypeSource24 July 2023 V-Varen NagasakiFull1 August 2023 Al-Duhail SCFull
Departures DatePositionPlayerToTypeSource13 July 2023 CelticFull27 July 2023 Sint-TruidenFull30 July 2023 Ehime FCLoan11 August 2023 Sanfrecce HiroshimaFull
Yokohama FC
Arrivals DatePositionPlayerFromTypeSource27 June 2023 Mito HollyhockLoan return
Departures DatePositionPlayerToTypeSource4 July 2023 NEC NijmegenLoan11 July 2023 OliveirenseLoan extension2 August 2023 CearáFull8 August 2023 Gamba OsakaLoan16 August 2023 Vissel KobeLoan16 August 2023 Tokyo VerdyLoan
See also List of J1 League football transfers winter 2022–23 List of J2 League football transfers summer 2023 List of J3 League football transfers summer 2023
References
External links J1 League 2023 Transfers J.League News JFA/J.League 2022 DSPs to fully join the league on 2023