| Honorific-Prefix: | Jonkheer |
| James Loudon | |
| Office: | Governor-General of the Dutch East Indies |
| Term Start: | 1 January 1872 |
| Term End: | 26 March 1875 |
| Predecessor: | Pieter Mijer |
| Successor: | Johan Wilhelm van Lansberge |
| Office2: | Minister of Colonial Affairs |
| Term Start2: | 14 March 1861 |
| Term End2: | 31 January 1862 |
| Primeminister2: | Jacob van Zuylen van Nijevelt Schelto van Heemstra |
| Predecessor2: | Jean Pierre Cornets de Groot van Kraaijenburg |
| Successor2: | Gerhard Hendrik Uhlenbeck |
| Birth Date: | 8 June 1824 |
| Birth Place: | The Hague, United Kingdom of the Netherlands |
| Death Place: | The Hague, Netherlands |
Jonkheer James Loudon (8 June 1824 – 31 May 1900) was a Dutch politician. He was Minister of Colonial Affairs in the Van Zuylen van Nijevelt-Van Heemstra cabinet (1861–1862), King's Commissioner in South Holland (1862–1871), and Governor-General of the Dutch East Indies (1872–1875). He was the father of politician John Loudon.[1]
The ship Gouverneur Generaal Loudon (1875) was named after him.
He was made a Jonkheer in 1884.[1]