Saif Ali Khan (Hindi: सैफ़ अली ख़ान, Urdu: سیف علی خان; born 16 August, 1970 in New Delhi, India) is an award-winning Indian actor who stars in Bollywood films. He is the son of the Nawab of Pataudi, Mansoor Ali Khan Pataudi, and the actress Sharmila Tagore. He has two sisters; actress Soha Ali Khan, and Saba Ali Khan.

Khan made his debut in 1992 with Parampara. He had his major success with the 1994 films Main Khiladi Tu Anari and Yeh Dillagi. After starring in several box office failures throughout the 1990s, he gained acclaim and rose into prominence with his performance in Dil Chahta Hai (2001), and went on to turn his career professionally after that. He was praised for his performance in Nikhil Advani's hit Kal Ho Naa Ho (2003), which won him the Filmfare Best Supporting Actor Award, and won the coveted National Film Award for Best Actor for his performance in another hit Hum Tum (2004). He then had commercial success with films like Salaam Namaste (2005) and Ta Ra Rum Pum (2007), and starred in numerous critically acclaimed projects such as Parineeta and Omkara (2006). These successes put him among the most successful actors in the industry.

Saif Ali Khan is the son of Bollywood actress, Sharmila Tagore, and Indian cricketeer, Mansoor Ali Khan. Saif Ali Khan has been married to Bollywood actress, Amrita Singh, and has two children, namely daughter Sara Ali Khan, and son Ibrahim Ali Khan. Saif Ali Khan and Amrita Singh have now separated. Sara and Ibrahim are with their mother, Amrita Singh. Saif Ali Khan is now romantically involved with an Italian girlfriend. He has a sister by the name of Soha Ali Khan.