No, there are 8 1 compound surnames in China: Ouyang, Taishi, Duanmu, Shangguan, Sima, Dongfang, Dugu, Nangong, Wanxiong, Wen Ren, Xiahou, Zhuge, Weichi, Ram, Helian, Dan Tai, Huangfu, Zong Zheng, Puyang, Shu Tai, Shen Tu and Gongsun.

Father, Gu Liang, Tuoba, Oracle bones, Xuanyuan, Hu Ling, Duangan, Baili, Huyan, Dongguo, Nanmen, Yangtongge, Weisheng, Gong Hu, Gong Yu, Gongyi, Liang Qiu, Gong Zhong, Gongshang, Gongmen, Gongshan, Gongjian, Zuo Qiu, Gongbo, Ximen, Gong Zu, Fifth, Gongbo. Wu Ming