Koos as a Baby Name. Meaning and Origin of Koos

What is the meaning of the name Koos ?

The baby name Koos is a Male name , 1 syllables long and is pronounced /koːs/ (KOHs).

Koos is Dutch in Origin.

Koos is a Dutch and Afrikaans short form of Jacobus, the Latinized version of Jacob, ultimately from Hebrew Ya'aqov meaning "supplanter" or "one who follows at the heel." The nickname appears in Dutch records from the early modern period and became established as a stand-alone given name. It traveled to southern Africa with 17th-century Dutch settlers and remains familiar in Afrikaans-speaking communities, borne by figures such as businessman Koos Bekker and singer-songwriter Koos du Plessis.

Variant and related forms include Coos (Netherlands), Kobus and Koosie (Afrikaans), and the diminutive Koosje in Dutch; the formal source is Jacobus/Jakobus, with international cognates Jacob, Jakob, James, Jacques, and Iago/Diego. While masculine in use, Koosje has also served as a pet form of Jacoba. The name conveys a brisk, approachable tone and works well as a compact alternative to Jacob or Jacobus, especially for families with Dutch or South African ties.