Kevin - We Need to Talk About Kevin

This psychological thriller explores nature vs. nurture between a mother and son. Far from being a comical character, Kevin instead is a child psychopathic killer. Expect the number of babies named Kevin to drop in the next year.

Kevin - Raising Hope

Here, in this brief clip, the poultry about to be eaten with some Inca tea is named of course, Kevin.

Kevin, Montana

Today we celebrate the old oil town of Kevin, Montana. According to Wikipedia, it's in Toole County and had 178 people back in 2000. It was named for an official of the Alberta Railway and Irrigation Company, Thomas Kevin.
Looks like there's 2 pubs and a church: http://www.travelmt.com/mt-cities-Kevin.html

Google actually made it out there for Street View:

View Larger Map

Kevin C. Cucumber - SpongeBob SquarePants

The leader of the Jellyfishing club, SpongeBob becomes his biggest fan after seeing him at a Jellyfish Convention. Though he presents himself as being a strong being, he's really a scared creature and only joined the club for the fashion. See more here: http://spongebob.wikia.com/wiki/Kevin_C._Cucumber

Kevin Malone - The Office

A supporting character at the Dunder Mifflin office. Of course he's a balding, overweight, middle-aged man who only has a handful of expressions. Though subdued most of the time, Kevin will speak his mind when he wants and provides for some memorable times around the office.

Kevin Stern - The Hard Times of RJ Berger

On this MTV show, Kevin Stern, according to Wikipedia, is "an overweight, indolent nerd", and sadly at the beginning of the second season dies because he and his "scooter crashed through a window in a donut shop."

Kevin the Minion - Despicable Me

Not one of the main Minions from Gru's army, but he's the one that gets shrunk to a few inches (at least he didn't get a fart shot at him). Thankfully he comes back to form as seen here.