A military dolphin is one that is trained to be utilized in military operations. Both the US and Russia have trained and used dolphins for many different uses. These military-trained dolphins have been taught to search and help lost swimmers in the navy or to find mines underwater.

The US. Navy trains dolphins and sea lions in a special facility San Diego, California. They collect some of their dolphins from the Mexican Gulf. Military dolphins were utilized by the US. Navy in the 1st and 2nd wars in the Gulf. There are currently about seventy five dolphins being trained and used.

Because of the secrecy of this training, there are whispers of military-trained dolphins that can put mines underwater, to find enemies, or to search for and eliminate underwater subs using self-destructive ways. There have even been guesses about the possible creation of intelligent add ons, such as harmful darts, sonar stopping devices, and other tools for dolphins. The US military denies ever engaging in such a training program, but controversy theorists don't buy it.

In the mid 2000s there was a news report that after a hurricane some military dolphins had escaped. The military said that these stories were just rumors or urban legends.

These dolphins are trained by special teams of Navy mammal trainers. Different teams have different responsibilities for training the dolphins about different tactics. Dolphins are educated just like the dogs that police use for their work. When they do something right they are given rewards like fish. Dolphins are educated to find mines and enemies and then give the news to their trainers.