Raynier \ra(y)-nier\ as a boy's name is a variant of Rainer (Old German), and the meaning of Raynier is "deciding warrior".
The baby name Raynier sounds like Rayner, Rainier, Ranier and Rayniero. Other similar baby names are Dayner, Garnier, Gayner, Lanier, Raynor, Raynes, Rayne, Ranger, Rainger, Rayder, Renier, Reinier, Raynar, Raniero, Ranieri and Tanier.