Zero is a 2018 Indian Hindi-language comedy drama film written by Himanshu Sharma, directed by Aanand L. Rai and produced by Colour Yellow Productions in collaboration with Red Chillies Entertainment. The film stars Shah Rukh Khan, and Katrina Kaif, while Anushka Sharma, Abhay Deol, R. Madhavan and Mohammed Zeeshan Ayyub in important supporting cast. The plot revolves around Bauua Singh, a short man from Meerut who, after having difficulty finding a marriage partner, finds a companion in Aafia Bhinder, a NSAR (a fictional space research facility) scientist with cerebral palsy. However, film superstar Babita also gets close with him, testing his first relationship, before this love triangle takes them to far-off cities, thrusting Bauua into an adventure to discover both his true love and completeness in a life lived to the fullest.

The project was conceived by Rai in 2012, before pre-production commenced in 2016. Initially under the working title Katrina Meri Jaan, it went through numerous name changes before arriving at the final title in early 2018. Principal photography began in Mumbai during May 2017 and concluded in 2018 in Orlando. The soundtrack is composed by Ajay–Atul with lyrics written by Irshad Kamil, under the label T-Series.

Zero was released on 21 December 2018, to mixed-to-negative reviews from both critics and audiences alike. The lead performances (especially Khan and Kaif) and visual effects received acclaim. However, the direction, story, plot, and inconsistent screenplay were largely criticized. Despite having widespread hype prior to release, the film was one of the biggest box-office failures in Khan's career leading him to take a five year hiatus.

At the 64th Filmfare Awards, Zero received seven nominations, including Best Actor (Khan) and Best Supporting Actress (Kaif), and won Best Special Effects.