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:

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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.

Kevin's Voice Mail - Community

At the very end of a Community Halloween episode, George Tekai randomly gives a free voice message for all Kevins' cell phones. Why Kevin? I guess it just fits.

Kevin the Snipe - Up!

Though very large, colorful, and flightless, this bird is suppose to be elusive and difficult to find. But with a weakness for chocolate, it befriends Russell and the crew. Providing physical comedy for all ages, Kevin plays a pivotal role in Up. Oh yeah and of course, Kevin's female, in search for her chicks. Harbhrhabrahrb!

Kevin Arnold - The Wonder Years

Earlier we had a big screen Kevin, today is probably the most popular on the small screen (again, for me at least). He was a good kid struggling to figure out life and girls during a time when America was redefining itself in the 60s and 70s. There was an honest charm to him that made him easily relatable.
Enjoy a clip of his brother Wayne, embarrassing him.

On a side note, Daniel Stern who played the narrator, also played one of the burglars in Home Alone.

Kevin - 3-2-1 Penguins!

A children's animated show that parody's Star Trek to some degree. The main characters are Zidgel, Fidgel, Midgel, and... Kevin. Yes, Kevin is the lovable, fat, dopey one with one eye bigger than the other. His comic relief sprinkles in at the right time in the show. The intro tells you everything you need to know about Kevin.

Kevin McCallister - Home Alone

Probably the most popular Kevin from the big screen (for me at least). Youngest child, picked on by his older siblings, and of course, forgotten one day by his family. A quirky hero in a classic Christmas comedy that help set the standard for other Kevins.