Seiko Shimakage

{{Short description|Japanese volleyball player (born 1949)}}

{{Infobox volleyball player

| name = Seiko Shimakage

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| birth_date = {{Birth date and age|1949|02|16}}

| birth_place = Sakata, Japan

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| medaltemplates-title = Medal record

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{{MedalSport | Women's volleyball}}

{{MedalCountry | {{JPN}} }}

{{MedalCompetition | Olympic Games}}

{{MedalSilver| 1972 Munich |Team}}

}}

{{nihongo|Seiko Shimakage|島影 せい子|Shimakage Seiko|extra=born February 16, 1949}} is a Japanese former volleyball player who competed in the 1972 Summer Olympics.

She was born in Sakata.

In 1972 she was part of the Japanese team which won the silver medal in the Olympic tournament. She played all five matches.