What pocket knife is stylish enough to be used with a suit?

Although a lot of the knives suggested so far are very nice, a lot of them are a little too outdoorsy for my liking. The last thing I'd want to do in a meeting is whip out a knife that says "I go hunting on weekends"...

I prefer something more along the lines of the Victorinox Pioneer;

It's simple and understated, and the silver color guarantees it will go with any suit you wear.

Vitorinox Knives with the Alox handles. They are metal, functional, and handsome. Some other knives might be a little too threatening for a work environment.

http://www.amazon.com/exec/obidos/ASIN/B0007QCOO2/uncrate-20

If you'd rather have something modernist(ish), something that can be a conversation piece as well, check out the Leatherman Skeletool. I have one, and it's very handy, plus it's just kind of bad-ass.

Honestly the only good utility knife, if you're working all days cutting boxes open, is one where you can constantly replace and refill blades. None of those look any good. This is the best one I've used working in a warehouse:
http://www.homedepot.com/Tools-Hardware-Hand-Tools-Cutting-Tools-Utility-Knives-Blades/h_d1/N-5yc1vZ1xr5Zaq8q/R-100086514/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

If you're only using it sparingly, Leatherman's are a great choice but a costly one at that:
http://www.leatherman.com/products/category.asp?c=2

Being an outdoor enthusiast and having purchased my share of insufficient knives; I've learned to rely on Spyderco. Whether it be the casual everyday carrying knife, or something a little more hardcore, Spyderco has an amazing knife for you. On the subject of a classy, clean looking knife I'd go with the Spyderco Caly 3. http://www.knifecenter.com/kc_new/store_detail.html?s=SP113GP
It sports great ergonomics, functionality, and dangerously sharp VG-10 steel, right out of the box. But as Spyderco goes, anything but the "Byrd" class knives will bring you years of reliable service.

It depends on the color of your suit...

William Henry makes some of the most beautiful production knives out there. Some with pocket clips and some with cases.

William Henry Kinves

If you don't mind spending the money on a custom knife, then browse the pocket knives at:http://www.knifeart.com/foldingknives.html

I carry a knife with me to work (and everywhere else, for that matter, sans airplanes), and I have to wear a suit/tie at the office. Having a non-clip knife has its disadvantages--tends to jostle around and/or fall out of your pocket. If you want gentlemanly, practical, classy, small and high-quality, you cannot go wrong with the Spyderco Dragonfly with the stainless steel handle. Works like a charm. http://www.knifecenter.com/kc_new/store_detail.html?s=SP28P

I would recommend an Old Timer knife. My dad was a business man and carried one of these with him at all times. He even bought a few more and gave one to my brother, and one to me.

Less than $15
Classy
Not Bulky
Classic Look

http://www.knivesplus.com/oldtimerknife-sc-108ot.html

I would recommend the Slick Stick Knife. This is a really good looking knife, it opens with one hand, altogether a very classy knife.

Slick Stick Knife

I use a very small, silver/chrome Benchmade as my keychain. It weighs less than 2 ounces, has a very sharp blade that is fine for mundane tasks such as opening boxes/envelopes, and looks great with my set of silver keys. It's a 1.9 inch blade, and it looks kind of badass without drawing lots of attention to it. The small size definitely makes it appear to be a "utility tool" instead of a "scary knife".

http://www.benchmade.com/products/product_lgshot.asp?sku=pd549

$35 for a Benchmade, in a classy silver that will fit into any pocket and I don't think you can go wrong!

I think there are a couple schools of thought when it comes to knives and the work place. Uncrate's answer seems tailored toward the modern office worker who has the occasional need for a pocket knife... one that just so happens to match his iPhone and other awesomely-up-to-date goods... I can definitely dig this knife.

On the other hand is the utilitarian side of things... Some people need knives more often. Something sharp, and maintainable. The classic answer is the "box cutter." For someone like myself, who does have this daily need, yet also works in a modern office that has it's own particular "style," the classic yellow plastic/pot-metal box knife doesn't really cut it in the looks department... no pun intended...

For that guy, I recommend the slightly more stylish, and more easily hidden industrial strength Husky Folding Utility Knife... We've all seen them around at Home Depot... You can get two for like $10..

Husky Folding Utility Knife → Husky Folding Utility Knife

I prefer the dark gunmetal one, but red and blue are equally as nice depending on your tastes.

I use a very small, silver/chrome Benchmade as my keychain. It weighs less than 2 ounces, has a very sharp blade that is fine for mundane tasks such as opening boxes/envelopes, and looks great with my set of silver keys. It's a 1.9 inch blade, and it looks kind of badass without drawing lots of attention to it. The small size definitely makes it appear to be a "utility tool" instead of a "scary knife".

http://www.benchmade.com/products/product_lgshot.asp?sku=pd549

http://www.benchmade.com/images/pr/pdf/10610_NPA.pdf

$35 for a Benchmade, in a classy silver that will fit into any pocket and I don't think you can go wrong!

I collect knives and have had the problem of people looking at me funny when I'm out and pull out some scary looking knife . I have found the Buck little scholar to be the coolest " dress knife " I have ever owned also thinest with no belt clip .
P.S it is very shiny . Buck scholar http://www.rei.com/product/752280

Buck makes my favorite "Office Pocket knife". Its called the Metro
Buck Metro
It is a perfect tiny lockblade you can open with your thumb. It's not a lot bigger than a silver dollar, flat and easy to draw, use and put the heck away. Even doubles as a bottle opener.
$23 bucks. simple, easy, flat- works.

I have a big ol' Benchmade that I love but a bit bulky and scary for a night out on the town. For something a bit smaller and perfectly functional I go with the Spyderdco Ladybug http://www.rei.com/product/756515

I like the SOG Twitch II. Slightly smaller, there's the SOG Twitch I.

Both are simple, elegant, and nonthreatening, yet functional. The finish is matte but I have yet to scratch it. The clip on them is also wider than most and makes for a good moneyclip if you hesitate to hang it on your pocket.

Sebenza will scare the crap out of most people...even the small one. It is a little too rugged for a suit and tie. Having said that, the most beautiful functional knife I know of is Chris Reeve's Mnandi, by the same maker as Sebenza. It is a true gentleman's knife, but with the same technology as the Sebenza and a more refined blade geometry.

+1 for the Chris Reeve Mnandi.

http://www.onlyfineknives.com/knife_images/L-cr-mnandi-bocote-different-nail-nick.jpg

I really liked this one, ordered it and it is nice, http://www.uncrate.com/men/gear/tools/delegate-pocket-knife/

I prefer the Kershaw Chive

but if you want something more durable, i suggest a Victorinox Tinker

This is a good knife that will get the job done and stay sharp.