This article shows all participating team squads at the 2021 Women's European Volleyball Championship, held in Serbia, Bulgaria, Croatia and Romania from 18 August to 4 September 2021.
<section begin=AZE /> The following is the Azerbaijani roster in the 2021 European Championship.
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<section begin=BEL /> The following is the Belgium roster in the 2021 European Championship.
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<section begin=BIH /> The following is the Bosnia and Herzegovinan roster in the 2021 European Championship.
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<section begin=FRA /> The following is the French roster in the 2021 European Championship.
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<section begin=RUS /> The following is the Russian roster in the 2021 European Championship. The Russian roster was revamped following the 2020 Summer Olympics to rest key players on the Olympic team.
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<section begin=SRB /> The following is the Serbian roster in the 2021 European Championship.
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<section begin=BUL /> The following is the Bulgarian roster in the 2021 European Championship.
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<section begin=CZE /> The following is the Czech roster in the 2021 European Championship.
<section end=CZE/>
<section begin=GER /> The following is the German roster in the 2021 European Championship.
<section end=GER/>
<section begin=GRE /> The following is the Greek roster in the 2021 European Championship.
<section end=GRE />
<section begin=POL /> The following is the Polish roster in the 2021 European Championship.
<section end=POL />
<section begin=ESP /> The following is the Spanish roster in the 2021 European Championship.
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<section begin=BLR /> The following is the Belarusian roster in the 2021 European Championship.
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<section begin=CRO /> The following is the Croatian roster in the 2021 European Championship.
<section end=CRO/>
<section begin=HUN /> The following is the Hungarian roster in the 2021 European Championship.
<section end=HUN/>
<section begin=ITA /> The following is the Italian roster in the 2021 European Championship.
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<section begin=SVK /> The following is the Slovakian roster in the 2021 European Championship.
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<section begin=SUI /> The following is the Swiss roster in the 2021 European Championship.
<section end=SUI />
<section begin=FIN /> The following is the Finnish roster in the 2021 European Championship.
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<section begin=NED /> The following is the Dutch roster in the 2021 European Championship.
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<section begin=ROU /> The following is the Romanian roster in the 2021 European Championship.
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<section begin=SWE /> The following is the Swedish roster in the 2021 European Championship.
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<section begin=TUR /> The following is the Turkish roster in the 2021 European Championship.
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<section begin=UKR /> The following is the Ukrainian roster in the 2021 European Championship.
<section end=UKR />