= Echinocactus peruvianus K.Schum.; Gesamtbeschr. Kakt., Nachtr. 1: 113 (1903)
= Echinopsis urbis-regium Molinari & Mayta; Succulentopia 14: 20 (2015), nom. nov. for Echinocactus peruvianus Schum.
= Matucana peruviana (K.Schum.) G.J.Charles; Cact. Explor. 29: 3 (2024)
= Oroya baumannii Kníže; Biota 7: 254 (1969)
= Oroya baumannii var. rubrispina Kníže; Biota 7: 254 (1968)
= Oroya borchersii var. baumannii (Kníže) Slaba; Kaktusy (Brno) 21(1): 10 (1985)
= Oroya gibbosa F.Ritter; Kakteen Südamerika 4: 1512 (1981)
= Oroya gibbosa Ritter ex Backeb.; Cactaceae [Backeberg] 3: 1695 (1959), sine descr. lat.
= Oroya gibbosa var. citriflora Kníže; Biota 7: 255 (1969), nom. inval.
= Oroya laxiareolata Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 32 (1957)
= Oroya laxiareolata var. pluricentralis Backeb.; Descr. Cact. Nov. [Backeberg] 3: 10 (1963)
= Oroya neoperuviana Backeb.; Kaktus-ABC [Backeberg & Knuth] 282, 416 (1935)
= Oroya neoperuviana var. depressa Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 32 (1956 publ. 1957)
= Oroya neoperuviana var. ferruginea Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 32 (1956 publ. 1957)
= Oroya peruviana subsp. depressa (Rauh & Backeb.) Ostolaza; Cactus Perú 398 (2014)
= Oroya peruviana var. baumannii (Kníže) Slaba; Kaktusy (Brno) 20: 10 (1985)
= Oroya peruviana var. citriflora (Kníže) Slaba; Kaktusy (Brno) 21(1): 9 (1985)
= Oroya peruviana var. conaikensis Donald & A.B.Lau; Natl. Cact. Succ. J. 25: 33 (1970)
= Oroya peruviana var. depressa (Rauh & Backeb.) Slaba; Kaktusy (Brno) 21(1): 9 (1985)
= Oroya peruviana var. neoperuviana (Backeb.) Slaba; Kaktusy (Brno) 20: 7 (1985)
= Oroya peruviana var. pluricentralis (Backeb.) F.Ritter; Kakteen Südamerika 4: 1511 (1981)
= Oroya subocculta Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 32 (1956 publ. 1957)
= Oroya subocculta var. albispina Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 32 (1956 publ. 1957)
= Oroya subocculta var. fusca Rauh & Backeb.; Descr. Cact. Nov. [Backeberg] 1: 32 (1956 publ. 1957)
= Oroya subocculta var. laxiareolata (Rauh & Backeb.) Slaba; Kaktusy (Brno) 21(2): 34 (1985)
= Oroya subocculta var. pluricentralis (Backeb.) Slaba; Kaktusy (Brno) 21(2): 34 (1985)