Teunis is a Dutch masculine given name. Like Theunis, it is a derivative of Antonius (Anthony). [1] It is also considered a diminutive form of Antonius, Anton, Antoon, Anthonis, Anthoon, Antonie, and Antonis used in Belgium, Netherlands, Suriname, South Africa, Namibia, and Indonesia. [2] Its popularity as a birth name has dropped since the middle of the last century, taken over partially by its short form Teun. [3] People with the name include: