Baby Names Girl Names Meaning of the Name Theresia Updated January 12, 2026 by Jennifer M. Theresia Gender: Female Origin: Greek Meaning: Harvester ♥ Add to my Namelist What is the meaning of the name Theresia? The name Theresia is primarily a female name of Greek origin that means Harvester. Form of TheresaPeople who like the name Theresia also like: Keaira, Calandra, Aria, Ophelia, Saoirse, Thea, Charlotte, Cormac, Ronan, Seth, Lucien, Canon, Irving, Sebastian Names like Theresia: Terje, Teruko, Tedros, Tyreek, Torres, Tarak, Triska, Terrica, Tress, Tyrese, Trhaas, Tiras, Tirza, Tyrek, Theodorsia, Triage, Teresa, Tracy, Tyreak, Taurus, Teruyoshi, Tricia, Terehasa, Truce, Tyrus, Terris, Therius, Terrico, Tracey, Taruca Stats for the Name Theresia Theresia is currently not in the top 100 on the Baby Names Popularity Charts Theresia is currently not ranked in U.S. births