Llandygái (/lændɛˈɡaɪ/; Welsh: [ɬandɛ'ɡai]; ; also Llandegai) is a small village and community on the A5 road between Bangor and Tal-y-bont in Gwynedd, Wales. It affords a view of the nearby Carneddau mountain range. The population of the community taken at the 2011 Census was 2,487. Llandygái community includes nearby Tregarth and Mynydd Llandygái and also the pass of Nant Ffrancon.