The Zilog Z8000 is a 16-bit microprocessor architecture designed by Zilog and introduced in early 1979. Two chips were initially released, differing only in the width of the address bus; the Z8001 had a 23-bit bus while the Z8002 had a 16-bit bus.

Bernard Peuto designed the architecture, while Masatoshi Shima did the logic and physical implementation, assisted by a small group. In contrast to most designs of the era, the Z8000