- 龙子湖 lóngzihú LongzihuLongzihu, a district of Bengbu City [[蚌埠市|蚌埠市|beng4 bu4 shi4]] in Anhui province
- 公孙龙子 gōngsūnlóngzǐ Gongsun LongziThe namesake book of the Warring States period philosopher [[公孙龙|公孫龍|gong1 sun1 long2]], a key text of the Logicians or "School of Names"; it is famous for the "white horse is not a horse" argument and the "hard and white" paradox.
- 龙子湖区 lóngzihúqū Longzihu DistrictLongzihu, a district of [[蚌埠市|蚌埠市|beng4 bu4 shi4]] in Anhui province
- 石龙子 shílóngzi skinka type of lizard; skink; also known as [[蜥蜴|蜥蜴|xi1 yi4]]