标准普尔（英语：Standard & Poor's，或又常译为史坦普）是一家世界权威金融分析机构，总部位于美国纽约市，由亨利·瓦纳姆·普尔（Mr Henry Varnum Poor）于1860年创立。标准普尔由普尔出版公司和标准统计公司于1941年合并而成。标准普尔为投资者提供信用评级、独立分析研究、投资咨询等服务，其中包括反映全球股市表现的标准普尔全球1200指数和为美国投资组合指数的基准的标准普尔500指数等一系列指数。其母公司为麦格罗·希尔（McGraw-Hill）。

1975年，美国证券交易委员会SEC认可标准普尔为“全国认定的评级组织”或称“NRSRO”（Nationally Recognized Statistical Rating Organization）。

Standard & Poor's Financial Services LLC (S&P) is an American financial services company. It is a division of McGraw Hill Financial that publishes financial research and analysis on stocks and bonds. S&P is known for its stock market indices such as the U.S.-based S&P 500, the Canadian S&P/TSX, and the Australian S&P/ASX 200. S&P is considered one of the Big Three credit-rating agencies, which also include Moody's Investor Service and Fitch Ratings. Its head office is located on 55 Water Street in Lower Manhattan, New York City.