:1977 Japan Soccer League
{{Infobox football league season
| season = 1977
| competition = Japan Soccer League
| prevseason = 1976
| nextseason = 1978
}}
Statistics of Japan Soccer League for the 1977 season. This was the inaugural season of the Regional League promotion series, which replaced the Senior Cup as the source of the clubs promoted from the regional Japanese football leagues.
First Division
{{#invoke:sports table|main|style=WL PK
|res_col_header=Q
|winpoints=4
|team1=FJA|name_FJA=Fujita
|team2=MIT|name_MIT=Mitsubishi Motors
|team3=HIT|name_HIT=Hitachi
|team4=TYI|name_TYI=Toyo Industries
|team5=YAN|name_YAN=Yanmar Diesel
|team6=FUR|name_FUR=Furukawa Electric
|team7=NSY|name_NSY=Nippon Steel
|team8=NKK|name_NKK=Nippon Kokan
|team9=FJS|name_FJS=Fujitsu
|team10=TYT|name_TYT=Toyota Motors
|win_FJA=14|PKwin_FJA=1|PKloss_FJA=2|loss_FJA=1|gf_FJA=64|ga_FJA=15
|win_MIT=9|PKwin_MIT=4|PKloss_MIT=3|loss_MIT=2|gf_MIT=34|ga_MIT=21
|win_HIT=9|PKwin_HIT=4|PKloss_HIT=2|loss_HIT=3|gf_HIT=36|ga_HIT=25
|win_TYI=9|PKwin_TYI=2|PKloss_TYI=2|loss_TYI=5|gf_TYI=38|ga_TYI=20
|win_YAN=8|PKwin_YAN=3|PKloss_YAN=2|loss_YAN=5|gf_YAN=39|ga_YAN=28
|win_FUR=8|PKwin_FUR=2|PKloss_FUR=0|loss_FUR=8|gf_FUR=33|ga_FUR=31
|win_NSY=3|PKwin_NSY=2|PKloss_NSY=6|loss_NSY=7|gf_NSY=14|ga_NSY=29
|win_NKK=3|PKwin_NKK=3|PKloss_NKK=2|loss_NKK=10|gf_NKK=28|ga_NKK=27
|win_FJS=3|PKwin_FJS=2|PKloss_FJS=4|loss_FJS=9|gf_FJS=18|ga_FJS=38
|win_TYT=1|PKwin_TYT=0|PKloss_TYT=0|loss_TYT=17|gf_TYT=11|ga_TYT=81
|col_C=#D0F0C0|text_C=Champions
|result1=C
|col_RP=#ff9999|text_RP=To promotion/relegation Series
|result9=RP|result10=RP
|update=complete|source=
}}
=Promotion/relegation Series=
| class="wikitable" | |||
| align=center
! JSL Division 1 !! 1st leg !! 2nd leg !! JSL Division 2 | |||
| align=center
| Fujitsu | 3-1 | 3-0 | Nissan Motors |
| align=center | 0-2 | 0-2 | Yomiuri |
Yomiuri promoted, Toyota Motors relegated.
Second Division
{{#invoke:sports table|main|style=WL PK
|res_col_header=Q
|winpoints=4
|team1=YOM|name_YOM=Yomiuri
|team2=NIS|name_NIS=Nissan Motors
|team3=SUM|name_SUM=Sumitomo Metal
|team4=YAN|name_YAN=Yanmar Club
|team5=KOF|name_KOF=Kofu Club
|team6=KSC|name_KSC=Kyoto Shiko Club
|team7=HON|name_HON=Honda
|team8=TJN|name_TJN=Teijin Matsuyama
|team9=FEC|name_FEC=Furukawa Electric Chiba
|team10=TAN|name_TAN=Tanabe Pharmaceutical
|win_YOM=11|PKwin_YOM=1|PKloss_YOM=1|loss_YOM=5|gf_YOM=41|ga_YOM=19
|win_NIS=8|PKwin_NIS=4|PKloss_NIS=3|loss_NIS=3|gf_NIS=23|ga_NIS=18
|win_SUM=6|PKwin_SUM=4|PKloss_SUM=3|loss_SUM=5|gf_SUM=33|ga_SUM=32
|win_YAN=6|PKwin_YAN=4|PKloss_YAN=0|loss_YAN=8|gf_YAN=25|ga_YAN=24
|win_KOF=6|PKwin_KOF=2|PKloss_KOF=4|loss_KOF=6|gf_KOF=28|ga_KOF=28
|win_KSC=5|PKwin_KSC=4|PKloss_KSC=3|loss_KSC=6|gf_KSC=26|ga_KSC=37
|win_HON=5|PKwin_HON=3|PKloss_HON=3|loss_HON=7|gf_HON=25|ga_HON=24
|win_TJN=5|PKwin_TJN=3|PKloss_TJN=3|loss_TJN=7|gf_TJN=24|ga_TJN=31
|win_FEC=5|PKwin_FEC=2|PKloss_FEC=4|loss_FEC=7|gf_FEC=19|ga_FEC=28
|win_TAN=6|PKwin_TAN=0|PKloss_TAN=3|loss_TAN=9|gf_TAN=21|ga_TAN=24
|col_PP=#D0F0C0|text_PP=To promotion/relegation Series with Division 1
|result1=PP|result2=PP
|col_RP=#ff9999|text_RP=To promotion/relegation Series with Regional Series finalists
|result9=RP|result10=RP
|update=complete|source=
}}
=Promotion/relegation Series=
| class="wikitable" | ||
| align=center
! JSL !! 1st leg !! 2nd leg !! Regional Series | ||
| align=center
| 0-0(PK2-4) | 1-3 | Toshiba Horikawacho (Runner-up) |
| align=center
| 3-1 | 0-1 | Yamaha Motors (Champion) |
Toshiba promoted, Furukawa Chiba relegated.