Kho Gaye Hum Kahan (transl. Where Have We Lost Ourselves?) is a 2023 Indian Hindi-language coming-of-age buddy drama film directed by Arjun Varain Singh, in his directorial debut. Written by Singh, Zoya Akhtar, Reema Kagti and produced by Ritesh Sidhwani, Akhtar, Kagti, and Farhan Akhtar under the banners of Excel Entertainment and Tiger Baby Films, the film stars Siddhant Chaturvedi, Ananya Panday, and Adarsh Gourav as three friends who navigate their goals and relationships against the pressures of social media. Kalki Koechlin, Anya Singh and Rohan Gurbaxani appear in supporting roles.

The film is named after a song of the same name from the film Baar Baar Dekho (2016), also produced by Excel Entertainment. Principal photography of the film began in March 2022 and was wrapped up in August 2023. It released on Netflix on 26 December 2023.