Izaak is of Hebrew origin and means 'he will laugh'. It is derived from the verb 'itzahak', which signifies 'to laugh'. The name gained prominence through the biblical figure Isaac, who was the son of Abraham and Sarah in the Old Testament. Izaak has been used as a given name since medieval times but has become more popular in recent decades.
The name Izaak experienced a significant increase in popularity over time, with birth numbers ranging from just 5 in 1972 to a peak of 138 in 2011. After the year 2000, there was a consistent rise in births, indicating growing preference for the name. However, since 2016, there has been a noticeable decline, with 2023 seeing the lowest number of Izaak births (42) since 2017. In total, over nearly five decades, 2790 babies were named Izaak at birth.