垃圾搜索、垃圾桶寻宝、翻垃圾桶等，是指从别人抛弃的东西（有时不一定是垃圾桶）中收集自己有用的东西（例如食物）作为自己用途。进行这种行为的人不一定是因为贫穷，部份人是为了响应环境保护意识，更有部份人是以抗议及痛心资本主义社会的浪费；甚至有视之为嗜好者。

垃圾搜索是一种行为，从垃圾堆中搜索个人喜好的「宝物」，类似淘金。现代城市垃圾多数用垃圾袋包裹，翻垃圾难免破损其包装，所以某些法例禁止翻垃圾桶行为，理由是涉及公众卫生。

Dumpster diving is a popular form of modern salvaging of waste discarded in large commercial, residential, industrial and construction containers. Dumpster diving is an American English term, in UK and many parts of Europe this activity is commonly referred to as totting, skipping, skip diving or skip salvage in British English. Dumpster diving is the practice of sifting through commercial or residential waste to find items that have been discarded by their owners, but that may prove useful to the picker. It is not confined to dumpsters specifically, and may cover standard household waste containers, landfills or small dumps.