| ID | Author | Title | Year |
|---|
| 412 | Nicolas, Nicholas Harris | History of the Orders of Knighthood of the British Empire; of the Order of the Guelphs of Hanover; And of the Medals, Clasps, and Crosses Conferred for Naval Military Services; Vol. 3 | 1842 |
| 115 | Oldfield, Henry Ambrose | Sketches from Nipal, Historical and Descriptive. 2 Vols | 1880 |
| 942 | Oliphant, Laurence | A Journy to Katmandu (The Capital of Nepaul) with the Camp of Jung Bahadoor | 1852 |
| 1025 | Olivelle, Patrick | Yājñavalkya Dharmaśāstra : The Textual History of a Hindu Legal Code | 2020 |
| 1026 | Olivelle, Patrick | Yajnavalkya - A Treatise on Dharma | 2019 |
| 214 | Olivelle, Patrick | A Sanskrit Dictionary of Law and Statecraft | 2015 |
| 239 | Olivelle, Patrick | Manu's Code of Law: A Critical Edition and Translation of the Mānava-Dharmaśāstra | 2006 |
| 795 | Olivelle, Patrick, and Donald R. Davis (eds.) | Hindu Law. A new history of dharmaśāstra | 2018 |
| 796 | Oppitz, Michael | Geschichte und Sozialordnung der Sherpa | 1968 |
| 503 | Oppitz, Michael | The Bull, the Ox, the Cow and the Yak. Meat Division in the Himalaya. | 1997 |
| 222 | Ortner, Sherry B | Sherpas through their rituals | 1978 |
| 245 | Osborne, W. G | The Court and Camp of Runjeet Sing: With an Introductory Sketch of the Origin and Rise of the Sikh State: Illustrated with Sixteen Engravings | 1840 |
| 797 | Owens, Bruce McCoy | Envisioning Identity: Deity, Person, and Practice in the Kathmandu Valley | 2000 |
| 798 | Owens, Bruce McCoy | Monumentality, Identity, and the State: Local Practice, World Heritage, and Heterotopia at Swayambhu, Nepal | 2002 |
| 799 | Owens, Bruce McCoy | Innovation in Traditions of Transformation: A Preliminary Survey of a Quarter Century of Change in the Bāhāḥs and Bahīs of the Kathmandu | 2014 |
| 610 | Owens, Bruce McCoy | The Politics of Divinity in the Kathmandu Valley: The Festival of Bungadya/Rato Matsyendranath | 1989 |
| 611 | Owens, Bruce McCoy | Blood and Bodhisattvas: Sacrifice among the Newar Buddhists of Nepal | 1993 |
| 437 | Pandey, Madhav Raj | How Jang Bahadur Established Rana Rule in Nepal | 1973 |
| 904 | Pandey, Prakash | Mudrāvimarśa | 1990 |
| 189 | Pandey, Ram Niwas | The Rise and Development of the Baisi States (Continued) | 1972 |
