Porto-Novo (French pronunciation: ​[pɔʁtɔnɔvo]; also known as Hogbonu and Ajashe; Fon: Xɔ̀gbónù) ian kapitolyo kanBenin, asin naging kapitolyo kan French Dahomey. An komyun nasasakupan an lugar na igwang sukol na 110 square kilometro (42 sq mi) asin kan 2002 nagkaigwang populasyon na 223,552 katawo.[1][2]