Servant of God Euphemia of Racibórz (Polish: Eufemia raciborska) (1299/1301 – 17 January 1359) was a Polish princess member of the House of Piast in the Racibórz branch and Dominican Prioress in Racibórz.
She was the third child but second daughter of Duke Przemysław of Racibórz by his wife Anna, daughter of Konrad II of Masovia.
On 9 April 1313 Euphemia took the veil and entered in the Dominican monastery of the Holy Spirit in Racibórz. During her religious life, she was elected Prioress twice, in 1341 and during 1358–1359. Documents showed her as a person who dutifully cared of multiplicated the monastery goods. In 1313, she acquired the villages of Proszowiec, Markowice, Lyski, Pogrzebień and Lubomia from her brother, Duke Leszek of Racibórz. In 1335 Euphemia give to Nankier, Bishop of Wrocław the villages of Bieńkowice, Strzybnik, Sudoł and Kornowac as a Tithe. In 1337, she bought villages of Ligota and Izoldy to the widow of Piotr Strali, and in 1339 the village of Ucieszków and half of Warmutowice in Koźle to a certain Kunada Stosz (or Stoszowice). In 1340 the Dominican Order through Euphemia bought from Henryk z Plumowa and his brother Jeszka the town of Baborów and the villages of Suwałków, Czerwięcice and Dzielów. Three years later (in 1343) Euphemia received from her brother-in-law, Duke Nicholas II of Opawa-Racibórz, a large piece of land in Bieńkowice as her personal fief, but by 1351, the whole Bieńkowice was again in possession of the Dominican Order. At that time, Euphemia acted again as a representative of the Dominican Order and sold the villages of Bieniek, Turc and Kobern as the new Tithe given to the Church.