There is disclosed a prosthetic thumb assembly. In an embodiment, the assembly includes a distal phalanges. The assembly includes a proximal phalanges having an operable connection with the distal phalanges. The assembly includes a thumb strap ring having an operable connection with the distal phalanges. The assembly includes a proximal phalanges yoke having an operable connection with the thumb strap ring. The assembly includes an anchoring portion having an operable connection with the thumb strap ring. Other embodiments are also disclosed.