对羟基苯甲酸酯（英语：Paraben）是一类用在化妆品及药品工业中的防腐剂，有时也会被用在食品添加剂中，它的盐及化合物最初则用作杀细菌及杀真菌剂。在洗发水、商业润肤膏、刮胡膏、人体润滑剂、外用药品、喷雾溶剂、化妆品和牙膏中均可找到此类化合物。

此类化合物如此常见，是因为它们为有效且低成本的防腐剂，而且已用了一段历史，其天然代替品如葡萄柚籽提取物却不如它们般有效。然而，它们的使用却愈来愈有争议性，因它们曾在乳癌的肿瘤中被找到（平均1克组织中含20纳克）。它们表现出仿雌激素的作用，可能因此参与乳癌的发展。尽管如此，它们与乳癌间的直接关系却暂时未获证实。另外，它们仿雌激素的特性可能会令女童青春期提前变得更普遍。。

Parabens are a class of widely used preservatives in cosmetic and pharmaceutical products. Chemically, they are a series of parahydroxybenzoates or esters of parahydroxybenzoic acid (also known as 4-hydroxybenzoic acid). Parabens are effective preservatives in many types of formulas. These compounds, and their salts, are used primarily for their bactericidal and fungicidal properties. They can be found in shampoos, commercial moisturizers, shaving gels, personal lubricants, topical/parenteral pharmaceuticals, spray tanning solution, makeup, and toothpaste. They are also used as food additives.