Mobile Suit Gundam: Iron-Blooded Orphans (Japanese: 機動戦士ガンダム 鉄血のオルフェンズ, Hepburn: Kidō Senshi Gandamu Tekketsu no Orufenzu), also known as Gundam IBO and G-Tekketsu (Gの鉄血), is a 2015 Japanese mecha anime series and the fourteenth mainline entry in Sunrise's long-running Gundam franchise, succeeding Gundam Reconguista in G. The series is directed by Tatsuyuki Nagai and written by Mari Okada, a team which previously collaborated on Toradora! and Anohana: The Flower We Saw That Day. It aired in Japan on MBS and other JNN stations from October 4, 2015 to March 27, 2016,^[1] making this the first Gundam series to return to a Sunday late afternoon time slot since Mobile Suit Gundam Seed. A second season would premiere the following year on October 2, 2016.

Iron-Blooded Orphans follows the exploits of a group of juvenile soldiers who establish their own security company after rebelling against the adults who betrayed them on a futuristic, terraformed Mars. The series deals with several real-life problems such as war, slavery, child soldiers, poverty, neo-colonialism, and corruption. The catchphrase of the series is "The sustenance of life is on the battlefield." (いのちの糧は、戦場にある。, Inochi no kate wa, senjō ni aru.)^[2][3]