Edgar de Wahl (23 Ɔgɔst 1867 – 9 Mach 1948) na bin Baltik Jaman ticha, matematiks ɛn langwej man. I gɛt mɔ nem fɔ bi di wan we mek Interlingue (we dɛn sabi as Occidental ɔlsay na in layf), wan naturalistic kɔnstrɔkshɔn langwej we dɛn bays pan di Indo-Yuropian langwej dɛn, we dɛn bin fɔs pablish insay 1922.