I'll drop in a boring and eminently practical suggestion: Mora Companion MG.
I have one of the stainless ones and for my last 3-day trip it did everything I needed and could have done a whole lot more. I cut up cheese and sausage for snacks, stirred my pot of pasta at dinnertime, sliced open packages of food, struck my firesteel to get my Trangia stove burning, and even cut down a dead/hanging tree limb to use as fuel for a campfire -- ditto on the firesteel there, too.
Cheap, simple, light, easy to clean and sharpen, I really couldn't ask for more in a true "backpacking" knife. I really like the puukko shape -- a mostly long, straight, narrow blade with a bit of belly at the tip, and still plenty pointy. Narrow enough blade stock for food use, but thick enough to be sturdy and lend confidence. It's not a very exciting knife, but it's definitely a piece of kit that is actually worth its miniscule weight while packing up and down mountains!
***Ooh -- another important bit -- comfortable hand-filling grip with a tacky/rubbery feel, and a quality sheath, too! I have a Fallkniven S1 that I didn't bother to bring because, being honest with myself, which would I rather carry? Mora 100% of the time.