"Uninstall" (アンインストール, An'insutōru) is a single by Japanese singer-songwriter Chiaki Ishikawa. "Uninstall" and "Little Bird" are known as the theme songs for the anime Bokurano: Ours. "Uninstall" reached the number 13 spot on the Oricon's weekly charts, remaining on the charts for a total of 16 weeks.

"Uninstall"'s popularity in the Japanese Internet communities led to its constant inclusion in the Kumikyoku Nico Nico Douga mashups.

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