Alexander Porfyrovych Archipenko (also referred to as Olexandr, Oleksandr, or Aleksandr; Ukrainian: Олександр Порфирович Архипенко, Romanized: Olexandr Porfyrovych Arkhypenko; May 30 [O.S. May 18] 1887 – February 25, 1964) was a Ukrainian and American avant-garde artist, sculptor, and graphic artist. He was one of the first to apply the principles of Cubism to architecture, analyzing human figure into geometrical forms.