We have an interior, wooden, hollow door that got slammed back against the wall while we were moving furniture. Now there is a hole in the top right side near the hinge. Is there anyway that this can be repaired or are we stuck buying a new door. Since the door is hollow, I couldn't think of any way to do it. Any ideas would be appreciated.

 

You can make a repair on the door, depending on the size of the hole, but the amount of time and money, with a hollow core door, you could purchase a new one. They don't run much over $30 usually at the big boxes.

 

If the door is painted it can be patched. How you patch it depends on the size of the hole.

A big open hole you would need to cut a piece of wood to glue inplace and then spackle over it to make everything level.

If the hole is small or the wood is still there [just pushed in] you can use durhams rock hard putty or durabond to fill the hole. Save the top coat for spackling or j/c as it is easier to sand.

Depending on how many coats of paint are on the door and how well you do the repair, the repair may barely be visable.
I don't believe it is possible to make an aceptable repair on a stained door.