Phi Mu is a social collegiate sorority that is a member of the a National Panhellenic Conference. The sorority's chapter naming convention appears to utilize a first letter indicative of a state or region, thus many Pennsylvania chapter designations begin with "Phi"; however there are some exceptions to this rule where a name was derived from a predecessor local.
In the following list, active chapters are noted in bold and inactive chapters and institutions are in italics.Chapter Locator, as of 29 August 2023 a non-public link.