Nuffield College () is one of the constituent colleges of the University of Oxford in England. It is a graduate college specialising in the social sciences, particularly economics, politics and sociology. Nuffield is one of Oxford's newer colleges, having been founded in 1937, as well as one of the smallest, with only around 90 students and 60 academic fellows. It was also the first Oxford college to accept both men and women, having been coeducational since foundation, as well as being the first college exclusively for graduate students in either Oxford or Cambridge.

As of 2021, the college had an estimated financial endowment of £282 million. Due to its small intake, it was the wealthiest educational institution per student in the world in 2013. Since 2017, Nuffield has committed to underwriting funding for all new students accepted to the college. Between 2019 and 2023, 5.1% of applicants to the college were admitted.

Its architecture is designed to conform to the traditional college layout and its modernist spire is a landmark for those approaching Oxford from the west.