| Type: | Bishop |
| Honorific-Prefix: | His Excellency |
| Mauro Morelli | |
| Bishop Emeritus of Duque de Caxias | |
| Metropolis: | São Sebastião do Rio de Janeiro |
| Appointed: | 25 May 1981 |
| Term End: | 30 March 2005 |
| Predecessor: | First |
| Successor: | José Francisco Rezende Dias |
| Previous Post: | Auxiliary Bishop of São Paulo and Titular Bishop of Vatarba (1975–1981) |
| Ordination: | 28 April 1965 |
| Consecration: | 25 January 1975 |
| Consecrated By: | Paulo Evaristo Arns |
| Birth Date: | 1935 9, df=yes |
| Birth Place: | Avanhandava, São Paulo, Brazil |
| Death Place: | Belo Horizonte, Minas Gerais, Brazil |
Mauro Morelli (17 September 1935 – 9 October 2023) was a Brazilian Catholic prelate who served as Bishop of Duque de Caxias from 1981 to 2005.
Morelli died on 9 October 2023, at the age of 88.[1]