The Horn o Africae (Amharic: የአፍሪካ ቀንድ yäafrika qänd, Arabic: القرن الأفريقي al-qarn al-'afrīqī, Somali: Geeska Afrika, Oromo: Gaaffaa Afriikaa, Tigrinya: ቀርኒ ኣፍሪቃ) (alternatively Northeast Africae or Somali Peninsula; shortened tae HOA) is a peninsula in Northeast Africae that juts hundrits o kilometers intae the Arabie Sea an lies alang the soothern side o the Gulf o Aden.