| Celso José da Costa | |
| Birth Date: | April 7, 1949 |
| Birth Place: | Congonhinhas, Brazil |
| Nationality: | Brazilian |
| Occupation: | Mathematician |
| Known For: | Research in differential geometry, Discovery of Costa's minimal surface |
| Education: | Ph.D. in Mathematics |
| Alma Mater: | IMPA |
Celso José da Costa (born April 7, 1949 in Congonhinhas) is a Brazilian writer and mathematician who worked in differential geometry. His research activity has focused in the construction and classification of minimal surfaces embedded in three-dimensional Euclidean space. He is best known for his discovery of Costa's minimal surface, which was described in 1982.[1]
He earned his Ph.D. from IMPA in 1982 under the supervision of Manfredo do Carmo.