In some kind of non-traditional blocking way, you can.
Spoilers about magic:
Spoiler
There is spell which you can hold down and it casts a magic shield in front of you.
Spoiler
Wards, in the restoration school of magic that is. You channel a barrier in front of you as long as you hold down the cast key. Some people think they only block magical attacks though, won't know til we see for ourselves i guess