Irais is of Hebrew origin and means 'watchful' or 'vigilant'. It is often used as a female given name, although it can also be given to boys. The name gained popularity in the late 20th century but remains relatively uncommon. It has no known variant spellings or pet forms.
Irais experienced a significant peak in popularity during the early to mid-1990s, with years like 1990 (21 births), 1992 (19 births), and 1993 (21 births) seeing notably higher numbers compared to other decades. However, the name's usage began declining towards the late 1990s and early 2000s, with birth counts consistently below 20 from 1997 onwards until a brief resurgence in the mid-2000s (28 births in both 2002 and 2005). Since then, Irais has remained relatively uncommon, with most years between 2006 and 2023 reporting fewer than 15 births each year. The total number of babies named Irais over the course of these years is 611.