臂金龟科（学名：Euchiridae）是昆虫纲鞘翅目的一科，也有资料将本科视为金龟子科（Scarabaeidae）的一个亚科－臂金龟亚科（学名：Euchirinae）。本科甲虫的明显特征是具有超长的前足。
本科目前包含3属：
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