Kooistra

Kooistra is a Dutch surname. It is a patronymic name, derived from the given name Koos, a short form of Jacobus (James). The suffix "-stra" is a common Frisian suffix indicating origin or descent. Therefore, Kooistra signifies "son of Koos" or "descendant of Koos".

The name is primarily found in the Netherlands, particularly in the province of Friesland. It is also found among Dutch diaspora communities around the world.

Variations of the name may include Kooy, Kooij, Kooyman, Kooiman, Koos, and Jacobs. These names share the same origin or are closely related through the given name Jacobus or its derivatives.