Pacew
{{Infobox settlement
| name = Pacew
| settlement_type = Village
| total_type =
| image_skyline =
| image_caption =
| image_flag =
| image_shield =
| image_map =
| subdivision_type = Country
| subdivision_name = {{POL}}
| subdivision_type1 = Voivodeship
| subdivision_name1 = Masovian
| subdivision_type2 = County
| subdivision_name2 = Białobrzegi
| subdivision_type3 = Gmina
| subdivision_name3 = Promna
| coordinates = {{coord|51|40|14|N|20|53|16|E|region:PL|display=title,inline}}
| pushpin_map = Poland
| pushpin_label_position = bottom
| elevation_m =
| population_total =
| website =
}}
Pacew {{IPAc-pl|'|p|a|c|e|f}} is a village in the administrative district of Gmina Promna, within Białobrzegi County, Masovian Voivodeship, in east-central Poland.{{TERYT}} It lies approximately {{convert|5|km|mi|0|abbr=on}} west of Promna, {{convert|5|km|mi|0|abbr=on}} north-west of Białobrzegi, and {{convert|62|km|mi|0|abbr=on}} south of Warsaw.