| Nijō Masamaro | |
| Native Name: | 二条 正麿 |
| Birth Date: | January 9, 1872 |
| Birth Place: | Japan |
| Nationality: | Japanese |
| Occupation: | Politician |
| Known For: | Member of House of Peers |
| Children: | Nijō Toyomoto, Nijō Tamemoto |
| Parents: | Nijō Nariyuki |
, son of Nijō Nariyuki, was a Japanese politician who served as a member of House of Peers in the Meiji period. He was the father of and . Tamemoto was adopted by Nijō Atsumoto.