Zhou Zui 周最 (also read Zhou Xu) was a prince of the younger royal line of Western Zhou 西周 (not the ancient Western Zhou!). He served King Min of Qi 齊湣王 (r. 323-284) and suggested confederating with Wei 魏 against Qin 秦. Later on the king made an alliance with Qin, and Zhou Zui had to leave. He became a minister in Wei but then returned to Qi again to support this state.