Public affairs may refer to:
A broad field encompassing public administration, politics, and advocacy – see outline of public affairs
Public affairs (broadcasting), radio or television programs that focus on matters of politics and public policy
Public affairs (military), offices of the US Department of Defense that deal with the media
Public Affairs (political party), former Czech political party
Public Affairs Council, American professional association for people working in public administration and policy
Public affairs industry
Public relations as a profession
Publishing
PublicAffairs, American publishing company
Public Affairs Press, 20th-century publishing house based in Washington, DC
Public Affairs Quarterly, American philosophy journal