| Ajai Lamba | |
| Office: | Chief Justice of Gauhati High Court |
| Termstart: | 7 October 2019 |
| Termend: | 20 September 2020 |
| Appointer: | Ram Nath Kovind |
| Nominator: | Ranjan Gogoi |
| Office1: | Judge of Allahabad High Court |
| Termstart1: | 9 December 2011 |
| Termend1: | 4 October 2019 |
| Appointer1: | Pratibha Patil |
| Nominator1: | S. H. Kapadia |
| Birth Date: | 21 September 1958 |
| Birth Place: | Abohar, Punjab |
| Alma Mater: | Panjab University |
| Honorific Prefix: | Hon'ble Chief Justice Retd. |
| Office2: | Judge of Punjab and Haryana High Court |
| Appointer2: | A. P. J. Abdul Kalam |
| Nominator2: | Yogesh Kumar Sabharwal |
| Termstart2: | 22 March 2006 |
| Termend2: | 8 December 2011 |
Justice Ajai Lamba (born 21 September 1958) is an Indian Judge. He is former Chief Justice of Gauhati High Court and Judge of Allahabad High Court and Punjab and Haryana High Court.