Qi (乞, also commonly written as Chi, or Hat or Gat in Cantonese) is a Chinese surname, originated from Jiang (surname) (姜) of Qi (state) (齐), and Xianbei of Northern Wei, Mongolian of Yuan dynasty, Jurchens people of Qing dynasty.
Qi (奇, also commonly written as Ji or Ci in mandarin, Kei in Cantonese) is a Chinese surname.
during the Qing dynasty, Khitan people Cideri (奇德哩), Cidumu (奇杜穆), Cileng (奇楞), Cimosi (奇墨斯), Citela (奇塔喇), Cilei (奇壘) reduce surname Qi (奇).
During the middle Zhou dynasty, Lu (state)'s Ji (姬) family took the surname Qi (奇).
Qi (亓 also written as Kei in Cantonese) is a Chinese surname from Qiquan (亓官) the name of Public Office during the Xia dynasty.