The Roman Catholic Diocese of Luoyang/Loyang (Latin: Loiamen(sis), Chinese: 洛陽) is a diocese located in the city of Luoyang in the ecclesiastical province of Kaifeng in China.

• May 25, 1929: Established as Apostolic Prefecture of Luoyang 洛陽 from the Apostolic Vicariate of Zhengzhou 鄭州
• January 28, 1935: Promoted as Apostolic Vicariate of Luoyang 洛陽
• April 11, 1946: Promoted as Diocese of Luoyang 洛陽

• Bishops of Luoyang 洛陽 (Roman rite)
  • Bishop Peter Li Hong-ye (1988 - 2011)
  • Bishop Assuero Teogano Bassi, S.X. (巴友仁) (April 11, 1946 – November 8, 1970)
• Vicars Apostolic of Luoyang 洛陽 (Roman Rite)
  • Bishop Assuero Teogano Bassi, S.X. (巴友仁) (January 28, 1935 – April 11, 1946)
• Prefects Apostolic of Luoyang 洛陽 (Roman Rite)
  • Fr. Assuero Teogano Bassi, S.X. (巴友仁) (later Bishop) (January 9, 1930 – January 28, 1935)

• GCatholic.org
• Catholic Hierarchy