Swinbyrn \swi-nby-rn, swin-byrn\ as a boy's name is a variant of Swinburne (Old English), and the meaning of Swinbyrn is "swine stream".
The baby name Swinbyrn sounds like Swinburn and Swinborn. Other similar baby names are Sanborn, Sanburn, Swynborne and Swinbourne.