Known as a perfectionist who insists on getting a finished script before committing to a film and also refuses to work on more than one film at a time, both very unusual for Bollywood where actors usually work in several films at a time and script details are often improvised on the day of shooting.

He fell in love with Reena Dutta (a Hindu). As Muslims, his parents did not approve of her. As soon as he turned 21, he proposed to her. She accepted and their marriage stayed a secret for a while. Reena Dutta made a brief appearance in a song sequence in Khan's first film, though not a professional actress and already married to him at that time. It was big news when the marriage was first revealed. Reena Dutta maintained a very low profile and continued her job working in a travel agency.

In December 2002, Aamir filed for divorce. Reena took custody of the children. On December 28, 2005, Aamir married again, to Kiran Rao, who had been an assistant to director Ashutosh Gowariker during the filming of Lagaan.

Has 2 children with ex-wife Reena: a son, Junaid, and a daughter, Aira.

Recently had another child with his ex-girlfriend, English writer Jessica Hines, who delivered their son, Jaan Harry Hines, on September 14 2003.

His brother Faisal Khan is an actor, and they have co-starred in the 2000 film Mela. His cousin Tariq was an actor in the 1970s who notably appeared in Yaadon Ki Baraat and Hum Kisi Se Kum Nahin.

Recently, his brother Faisal publicly accused him of mistreating him and forcing him to take medication. Faisal has been said to be mentally unstable, however. On 31 October, 2007, courts granted temporary custody of Faisal to their father, Tahir Hussain. Aamir Khan's family came out in a public statement supporting him on all counts in this matter. The statement was also signed by his former wife and mother of his children, Reena Datta