保护知识产权法案（英语：Preventing Real Online Threats to Economic Creativity and Theft of Intellectual Property Act of 2011，简称：PROTECT IP Act，缩写：PIPA，意为「2011年防止实时线上对经济创新能力的威胁和对知识产权的盗窃的法案」），又称为国会968号草案（Senate Bill 968，简称：S. 968），这是美国一项待审议通过的法律。它的目的是赋予美国政府和知识产权拥有者更多的法律手段来干预「专门发布侵犯知识产权的内容或者虚假内容的非法网站」，特别是那些在美国境外注册的。这项法案由美国国会议员帕特里克·李希和另外11个来自两党的联合发起者于2011年5月12日提出。美国国会预算办公室预计，如要要落实此项法案，联邦政府至2016年共需支出4700万美元，用以执法和雇用并培训22个新的特务人员和26个后勤人员。众议院司法委员会通过了此项法案，但是议员Ron Wyden暂停了它。

The PROTECT IP Act (Preventing Real Online Threats to Economic Creativity and Theft of Intellectual Property Act, or PIPA) was a proposed law with the stated goal of giving the US government and copyright holders additional tools to curb access to "rogue websites dedicated to the sale of infringing or counterfeit goods", especially those registered outside the U.S. The bill was introduced on May 12, 2011, by Senator Patrick Leahy (D-VT) and 11 bipartisan co-sponsors. The Congressional Budget Office estimated that implementation of the bill would cost the federal government $47 million through 2016, to cover enforcement costs and the hiring and training of 22 new special agents and 26 support staff. The Senate Judiciary Committee passed the bill, but Senator Ron Wyden (D-OR) placed a hold on it.