'''Tonnis''' is both a given name and a surname. Notable people with the name include:

*Tonnis van der Heeg (1886–1958), Dutch trade unionist, politician, and resistance activist *Christiaan Tonnis (born 1956), German painter, draftsman, video artist and author

==See also== {{srt}} *Tennis (disambiguation) *Tonis *Tonnes (name) *Tonnie *Tonni (name)

{{given name|type=both}}