Poćkuny
{{Infobox settlement
| name = Poćkuny
| settlement_type = Village
| total_type =
| image_skyline = DK16 Poćkuny kier. Augustów.JPG
| image_flag =
| image_shield =
| image_map =
| subdivision_type = Country
| subdivision_name = {{POL}}
| subdivision_type1 = Voivodeship
| subdivision_name1 = Podlaskie
| subdivision_type2 = County
| subdivision_name2 = Sejny
| subdivision_type3 = Gmina
| subdivision_name3 = Sejny
| coordinates = {{coord|54|6|N|23|25|E|region:PL|display=title,inline}}
| pushpin_map = Poland
| pushpin_label_position = bottom
| elevation_m =
| population_total =
| website =
}}
Poćkuny {{IPAc-pl|p|o|ć|'|k|u|n|y}} is a village in the administrative district of Gmina Sejny, within Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Lithuania.{{TERYT}} It lies approximately {{convert|4|km|mi|0|abbr=on}} south-east of Sejny and {{convert|111|km|mi|0|abbr=on}} north of the regional capital Białystok.