Ulasaǔcy je selo u Ivanaŭski rajon, u Brestska oblast, Bjelorusija. Broj stanovnika je 43. Najbliži veći grad je Pinsk, 46 km istočno. Među znamenitostima u okolici su Saint Nicholas Orthodox church, Buchyn (19,8 km), Orthodox church of the Pokrov in Ivanava (19,2 km) i Church of the Exaltation of the Cross in Ivanava (19,3 km).
Piše se i Уласаўцы.
Znamenitosti u okolici
- Saints Peter and Paul church in Machroeastern Orthodox church building
- Saint Michael Orthodox church in Vosaŭcyeastern Orthodox church building
- Orthodox church of the Pokrov in Ivanavaeastern Orthodox church building
- Church of the Exaltation of the Cross in Ivanavakatolička crkva
- Saint Nicholas Orthodox church, Buchyncrkva