Yes, it could be. Can you describe the noise a little more? For example, we have a cyclical noise in one of our vehicles. It sounds like regular road noise but there is a cyclical nature to it that varies with vehicle speed. It's the tires, which get worn badly on the inside edge due to toe issues (in combination with camber) in the almost-non-adjustable rear.
Only one of your tires is worn strangely? If so, you need an alignment. Still, the wheel bearings are a weak spot on those so don't discount a bearing yet.