| Yi Bang-gan 이방간 | |
|---|---|
| Prince Hoean of Joseon (회안군) Grand Prince Hoean of Joseon (회안대군) | |
| Duke Mahan of Joseon 마한공 | |
| Born | Yi Bang-gan (이방간) 2 July 1364 Gwiju-dong, Hamheung, Hamgyong Province |
| Died | 10 April 1421 Joseon |
| Burial | |
| Spouse | Internal Princess Consort Min Internal Princess Consort Hwang Princess Consort Geumreung |
| Issue | Prince Uiryeong Prince Changnyeong Princess Seonghye Princess Shinhye Princess Yanghye Prince Geumseong Prince Geumsan |
| House | House of Yi |
| Father | Taejo of Joseon |
| Mother | Queen Sinui of the Anbyeon Han clan |
| Religion | Confucianism |
Grand Prince Hoean (Korean: 회안대군; 2 July 1364 – 10 April 1421), personal name Yi Bang-gan (이방간), was royal prince during the early Joseon Dynasty. He is the fourth son of King Taejo and Queen Sinui.