Can China people's names be four words?

yes, Chinese surnames have compound surnames: Ouyang, Taishi, Duanmu, Shangguan, Sima, Dongfang, Dugu, Nangong, Wanxian, Wenren, Xiahou, Zhuge, Weichi, Ram, Helian, Dan Tai, Huangfu, Zongzheng, Puyang, Gongye, Taishu, Shen Tu, Gongsun, Murong, Zhong Sun, Zhong Li, and so on. Hu Ling, Duangan, Baili, Huyan, Dongguo, Nanmen, Yangtongue, Weisheng, Gong Hu, Gongyu, Gongyi, Liang Qiu, Gong Zhong, Gongshang, Gongmen, Gongshan, Gongjian, Zuo Qiu, Gongbo, Ximen, Gong Zu, Fifth, Gongcheng, Guanqiu, Gongxi, Nanrong and Dongli.