Mu Alpha Phi (ΜΑΦ) is a sorority established in Puerto Rico on October 24, 1927.

The sorority that pioneered the Greek world movement for women on the island was established in the University of Puerto Rico, Río Piedras campus in October 1927.

By September 13, 1946, the Beta chapter was established at the College of Agriculture and Mechanic Arts in Mayagüez, Puerto Rico.

The first Beta sisters were Delia González, Maita Bravo, Andreita Martínez, and Rochie Sabater.

[5] By the early 1960s, sisters at the Inter American University at San Germán organized the Delta chapter, it was led by Martita Mercado, Sally Zaragoza, Laira González Rigau and Berníe Pabón.