YES!

Coffee junkies, rejoice: Drinking several cups a day (even decaf!) reduces the risk of deadly prostate cancer in men.
Forget toasting to good health. Clang your coffee mugs instead. Java may reduce risk of lethal prostate cancer in men, according to a study in the Journal of the National Cancer Institute.
Researchers at the Harvard School of Public Health found that men who drank six cups of coffee a day had a 60 percent lower risk of developing the deadly disease, while men who drank one to three cups had a 30 percent lower risk. Luckily, it didn’t matter whether they chose high-test or decaf, so I recommend switching to decaf once you’re sufficiently wired.
Other choices that may help lower your risk of prostate cancer: Avoid cigarettes and exercise regularly.