| Birth Place: | San Juan, Puerto Rico |
| Death Place: | San Juan, Puerto Rico |
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| Show-Medals: | yes |
Nilmaris "Nilmari" Santini Martin (May 25, 1959 – March 25, 2006) was a female judoka from Puerto Rico. She competed for her native country at the 1992 Summer Olympics in Barcelona, Spain, where she was defeated in the second round of the repêchage.
Santini won two silver medals at the 1991 Pan American Games, in the Women's Heavyweight (+ 72 kg) and in the Women's Open Class division, after having claimed the gold medal four years earlier in Indianapolis, United States.
She died in San Juan.