The ship name for Katie Bell and Oliver Wood is
Keeping the Chase, which is where the name of this website came from. It's a clever combination of Katie's Quidditch position as Chaser and Oliver's Quidditch position as Keeper.
For short, they are often referred to as KBOW or OWKB. (I happen to like 'KBOW' because it's fun to say aloud.)
Katie and Oliver are between two and three years apart in age, meaning that Katie was about thirteen or fourteen when Oliver graduated from Hogwarts. This fact is what sometimes deters people from supporting their relationship; although just because Oliver is a bit older doesn't mean that Katie couldn't have fancied him. After all, Hermione Granger fancied Lockhart, and their age difference is much greater.
