Baat Ek Raat Ki (English: A Tale of One Night) is a 1962 Hindi film directed by Shankar Mukherjee, starring Dev Anand, Waheeda Rehman and Johnny Walker.

The film has music by Sachin Dev Burman, who gave some memorable songs in the films such as "Na Tum Hamen Jano", sung by Hemant Kumar and Suman Kalyanpur, "Akela Hoon Main Is Duniya Mein" by Mohammed Rafi, and the hit qawwali, "Kisne Chilman Se Maara" by Manna Dey.

When renowned lawyer Rajeshwar (Dev Anand) decides to represent her, he accepts her guilt, but as he goes deep into the details of her story and the circumstances, he is not sure whether or not she is guilty.

In the whole story, CID (Johnny Walker) aids him as well as Kalu, a street beggar who pretends to be blind acts as a witness.

The movie ends with Rajesh and Neela driving the car to the song "Jo Ijaazat Ho To Ek Baat".