In the Unknown origin, Roos means "Roos \roos\ as a girl's name.
The baby name Roos sounds like Ros and Ross. Other similar baby names are Toos, Rory, Rora, Lois, Joss, Rodi, Roda, Robi, Roba, Roch, Roma, Romy, Romi, Rona, Roni, Rosa, Roza, Rose, Roz, Rozy, Rozsi, Rozsa, Roze, Rosy, Rosse, Roxy, Roxi and Roya."