Shamrock Farms is a dairy company in Phoenix, Arizona, United States.

Founded in 1922, Shamrock Farms is owned by the McClelland Family and is the largest family-owned and operated dairy in the Southwest.

Shamrock Farms was founded in 1922 in Arizona by Irish immigrant W.T.

In 1933, Shamrock Farms started utilizing milking machines.

[2] Mmmmilk is a well known milk brand distributed by Shamrock Farms in the Southwestern United States.