NSF Mathematical Sciences Postdoctoral Research Fellowships (USA)

The Mathematical Sciences Postdoctoral Research Fellowships (MSPRF) funded by the National Science Foundation (NSF) support the postdoctoral training of American researchers in mathematics. Applicants must have completed their doctoral degree in a relevant field within the past 2 years. Applicants must be citizens, nationals, or permanent residents of the USA. The fellowship provides a total of 190,000 USD for up to 48 months (stipend support is limited to 24 months). Applications close annually on the third Wednesday of October.

The next applications close on October 18, 2023.

More info at funder’s site