Khaled Hosseini (born c. 4 March 1965) is an Afghan-American novelist, physician, activist, humanitarian, and UNHCR goodwill ambassador. After graduating from college, he worked as a doctor in California, a predicament that he likened to "an arranged marriage."

His debut novel The Kite Runner (2003) was a critical and commercial success; the book, as well as his subsequent novels, have all been at least partially set in Afghanistan and have featured an Afghan as the protagonist.

Hosseini was born in Kabul, Afghanistan. His father worked as a diplomat, and when Hosseini was 11 years old, the family moved to France; four years later, they applied for asylum in the United States, where he later became a naturalized citizen. Hosseini did not return to Afghanistan until 2001 at the age of 36, where he "felt like a tourist in [his] own country". In interviews about the experience, he admitted to sometimes feeling survivor's guilt for having been able to leave the country before the Soviet invasion and subsequent wars.

Three of his novels have reached various levels of critical and commercial success: The Kite Runner (2003) spent 101 weeks on The New York Times Best Seller list, four of them at number one. A Thousand Splendid Suns (2007) was a Times Best Seller for 103 weeks, 15 at number one. And the Mountains Echoed (2013) debuted near the top of the Times list and remained on it for 33 weeks until January 2014.