Hasee Toh Phasee (transl. If she smiles, she is trapped) is a 2014 Indian Hindi-language romantic comedy-drama film directed by Vinil Mathew and produced by Karan Johar, Anurag Kashyap, Vikramaditya Motwane and Vikas Bahl under Dharma Productions and Phantom Films. The film stars Sidharth Malhotra and Parineeti Chopra, along with Adah Sharma, Manoj Joshi, Sharat Saxena and Neena Kulkarni.

Marking Malhotra's reunion with Dharma Productions, as well as Chopra's first project outside her Yash Raj Films collaborations, Hasee Toh Phasee follows the story of Nikhil, a struggling businessman who, believing he is in love with Karishma, an actress he is engaged to, has to prove his worth to his father-in-law while grappling with the sudden return of his fiancee's geeky sister, Meeta, who he had an encounter with years ago, throwing all of them into uncharted waters as he gets to know Meeta better. Vishal–Shekhar composed the music, while lyrics were written by Amitabh Bhattacharya and Kumaar.

The film was released on 7 February 2014. It mainly received positive reviews from critics, with praise for its story, music, humor, cinematography and cast performances, particularly Chopra's, and earned ₹63.38 crore worldwide, thus emerging as a moderate commercial success at the box office.

At the 60th Filmfare Awards, Hasee Toh Phasee received 3 nominations, including Best Lyricist (Bhattacharya for "Zehnaseeb") and Best Male Playback Singer (Shekhar Ravjiani for "Zehnaseeb"). Over the years, it has since attained cult status among the audience.