Rio Yamase

{{Short description|Japanese violinist, arranger, and composer}}

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{{Infobox musical artist

| name = Rio Yamase

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| native_name = 山瀬 理桜

| native_name_lang = ja

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| occupation = Violinist, arranger, composer

| instrument = Violin, Hardanger fiddle

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{{Nihongo|Rio Yamase|山瀬 理桜|Yamase Rio}} is a Japanese violinist, arranger, and composer.

She directed the music for the 2006 Studio Ghibli animation short film Mizugumo Monmon.