Reigo is an Estonian masculine given name, derived from Gregory via the Germanic form Gregor. The name thus inherits the meaning “watchful” or “alert,” from the Late Greek name Γρηγόριος (Gregorios).In Estonia, Reigo is primarily used as a diminutive or variant of Gregor, and it is one of several indigenous adaptations of the international name Gregory. The name is uncommon internationally but has maintained steady usage within Estonia, appearing in birth records since the early 20th century.Notable bearers include Reigo Rõõm (born 1950), an Estonian journalist and politician, and Reigo Joonas (born 1974), an Estonian chess master. The name is also found in literature, notably in Reigo: A Story of Old Estonia by Juhan Suits.Meaning: “watchful, alert” (from Greek)Origin: Estonian form of GregoryType: Given nameUsage region: Estonia