Band of Brothers is a 2001 British-American war drama miniseries based on historian Stephen E. Ambrose's 1993 non-fiction book of the same name. The executive producers were Steven Spielberg and Tom Hanks, who had collaborated on the 1998 World War II film Saving Private Ryan. The episodes first aired in 2001 on HBO. They still run frequently on various TV networks around the world.The series won the 2001 Emmy and Golden Globe awards for best miniseries.

The series dramatizes the history of the "Easy" Company (part of the 506th Parachute Infantry Regiment, 101st Airborne Division) from jump training in the U.S. through its participation in major actions in Europe, and up until Japan's capitulation and war's end. The events portrayed are based on Ambrose's research and recorded interviews with Easy Company veterans. The TV series took literary license, adapting the recorded history for the purposes of dramatic effect and series structure.All of the characters portrayed are based on members of Easy Company. Some of the men were recorded in contemporary interviews, which viewers see as preludes to each episode. The men's identities are not revealed until the finale.

The title for the book and the series comes from the St. Crispin's Day Speech in William Shakespeare's play Henry V, delivered by Henry V of England before the Battle of Agincourt. Ambrose quotes a passage from the speech on his book's first page; this passage is spoken by Carwood Lipton in the series' finale.