Peter Biľak (born 1973) is Slovakian graphic and typeface designer, based in The Hague, The Netherlands.
He is the head of the type foundry Typotheque. He was the co-founder, and co-editor of Dot Dot Dot.
In 2003, he designed a series of the standard post stamps for the Dutch Royal mail (TNT Post), today one of the Icons of the Post. Biľak teaches typeface design at the postgraduate course Type&Media at the KABK, Royal Academy of Art (The Hague), and lectures widely on graphic design and typography. He also contributes regularly to international publications and books, including Print, Emigre, Eye (magazine), Items, tipoGrafica, Idea (magazine), and is a member of Alliance Graphique Internationale.
From 2004 he has been collaborating with the choreographer Lukas Timulak on the concepts of dance performances. Together they were subject of an exhibition InLoop/EnTry in Stroom, Centre for Art and Architecture.