Family 1 is the name given to a group of Greek New Testament minuscule manuscripts of the Gospels, identified by biblical scholar Kirsopp Lake. These manuscripts vary in date from the 12th to the 15th century. The group takes its name from minuscule codex 1, now in the Basel University Library, Switzerland. "Family 1" is also symbolized as ƒ1 in critical editions of the Greek New Testament. Textual-critic Hermann von Soden refers to the group as Iη. Initially named after minuscule 1, later studies have demonstrated that another minuscule, minuscule 1582, is likely a better candidate as a representation of the archetype from which the Family 1 manuscripts are descended.

Kirsopp Lake was an English New Testament scholar, Church historian, Greek palaeographer, and Winn Professor of Ecclesiastical History at Harvard Divinity School.