Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal in astronomy, astrophysics and related fields.

It operates as a partnership between the Royal Astronomical Society (RAS), who select and peer-review the contents, and Oxford University Press (OUP), who publish and market the journal.

[2] The first issue of MNRAS was published on 9 February 1827 as Monthly Notices of the Astronomical Society of London and it has been in continuous publication ever since.

[3] In January 2024 MNRAS became a gold open access journal, making all articles free to read online as soon as they are published, under a Creative Commons Attribution (CC-BY) licence.

[9] If an author is not from a developing country but is unable to pay the APC, MNRAS provides partial or full waivers on a case-by-case basis.

Green open access was encouraged through self-archiving by authors on personal webpages, in institutional repositories, and on the arXiv preprint server.