| Jurisdiction: | Diocese |
| Lae | |
| Latin: | Dioecesis Laënsis |
| Country: |  Papua New Guinea |
| Population: | 657,000 |
| Population As Of: | 2013 |
| Catholics: | 36,400 |
| Catholics Percent: | 5.5 |
| Parishes: | 18 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | 15 November 1966 |
| Bishop Title: | Bishop |
| Bishop: | Rozario Menezes SMM |
The Roman Catholic Diocese of Lae is a suffragan diocese of the Roman Catholic Archdiocese of Madang, in Papua New Guinea. It was erected as a Vicariate Apostolic in 1959 and elevated to the status of a diocese in 1966.