| 郎 | láng | (arch.) minister; official; noun prefix denoting function or status; a youth; surname Lang |
| 郎世宁 | Láng shì níng | Giuseppe Castiglione (1688-1766) Jesuit who served as Qing court painter for 50 years |
| 郎中 | láng zhōng | doctor (Chinese medicine); ancient official title; companions (respectful) |
| 郎之万 | Láng zhī wàn | Langevin (name) |
| 郎君 | láng jūn | my husband and master (archaic); playboy of rich family; pimp |
| 郎平 | Láng Píng | Jenny Lang Ping (1960-), Chinese volleyball player, coach of USA women's national team since 2005 |
| 郎朗 | Lǎng Lǎng | Chinese concert pianist, 1982- |
| 郎格罕氏岛 | Láng gé hǎn shì dǎo | isles of Langerhans (medicine) |
| 郎溪 | Láng xī | Langxi county in Xuancheng 宣城, Anhui |
| 郎溪县 | Láng xī xiàn | Langxi county in Xuancheng 宣城, Anhui |
| 郎肯循环 | láng kěn xún huán | Rankine cycle (engineering) |