I’m not understanding the source of the issue. Plates get scraped and placed in the DW. How does that get anything on a wall? What is getting on the wall? And how?

Perhaps post a pic of the space you’re talking about. In my 60+ years, I’ve never experienced any splashing of the wall, when loading a dishwasher. Dripping on the floor (DH and DS) from hands and wet dishes, yes. But, not on the wall.

The dish loading process isn't going to change, trust me, and really doesn't matter in order to offer help answering my question. I'm just looking for a good wipeable surface suggestion.

Can you paint the wall with a paint that has more gloss? I find good quality paint to be fairly scrubbable. The glossier the easier to scrub. I do think a picture would be helpful for people to offer you other ideas. In my opinion, unless it's a backsplash or wainscoting, anything stuck on the wall will probably look weird. But if it's between looking a little weird and your sanity, opt for sanity.

Thanks @pricklypearcactus. I have that part satin so can go glossier (everything else is flat). I also plan to change the baseboard profile so it's not as much of a collection spot on top. You read my mind on the sanity bit! Maybe these two tweaks will be enough...I just don't want to put everything together and think "I wish I had thought of ___."

Paint is plenty durable enough for that. But do take a look at the how things are being done. A good DW doesn’t need dishes prerinsed, so there shouldn’t be any water or schmutz getting anywhere. Scrape off the excess and shove it in. Nothing getting on walls.

Sheet of stainless steel? Chalkboard paint?

Tile the wall. We have a similar set up and tiling the wall worked perfectly for us.

Thanks folks. Jeanne, did you tile to the floor or to baseboard?

Trust me, @User, I have looked at how things get done. Our dishwasher and methods are overall good and aren't changing, which is why I'm asking about the one less good component in our system.

I have tiled floors with matching tile baseboards so I tiled to the baseboard. I would tile all the way to the floor if you don’t have tile floor

Where is the yuck coming from ? Where is the garbge to scrape the plates ? SorryI have a DW next to wall and honestly even when my catering biz is going like crazy I have never had the wall get crap on it my garbage is on the left and that is where the crap goes so I need a picture of theDW and the stuff on the wall. I have the wall beside the DW tiled .

You don't need a picture of the dishwasher and the stuff on the wall to brainstorm my wipeable surface question. I'm not asking for help (or criticism) with our dishwashing system.

A good semi gloss paint will do the job if the wall is wiped once a week with a hot soapy washcloth before things get dried on and mummified. This is actually a common problem for dishwashers in a corner. The stuff that would normally end up on the floor ends up on the wall instead.

I know exactly what you mean, mailman. I'd suggest a semigloss, and if you do it on just that portion of the wall, no one will ever notice the sheen is different. However, we have a problem by the coffee maker where coffee spills have discolored the painted cabinets below, so even a good paint might not solve your problem. So, you might try this: find a dishwasher panel that is the same as or matches your dishwasher, and mount it to the wall (ensuring, of course, that you can still open the dishwasher).

Molman, I trust your assessment. I hope you find a good solution. We are in a somewhat similar boat, and you aren't required to justify yourself here. Your question should be enough.

Instead of stainless, you could do a plain sheet of painted thin metal. Like we used to do for a kitchen backsplash before everyone had to have tile.

I like that idea, @User. Our walls were like uneven 20 grit sandpaper when we moved in, it's better after years of scraping (to de-texture) them and painting, but the wall texture still can shred a cloth or sponge. See?! I hadn't thought of PAINTED metal! It would blend in nicely and be a simple fix wether or not we tile in the future.

Thanks all! Clearly, this is an annoyance for others, too, and I appreciate the group think to come up with solutions to a simple household issue that we can all consider.

I wish I could block some Houzzer's from seeing my posts and therefor replying...it seems a perpetual issue for some to act like trolls or give unsolicited advice rather than answering posted questions.

A chair molding at the usual height can divide the splashed wall into two zones. The lower zone can be easily repainted as needed without having to do the whole wall.

What about clear plexiglass? It looks like a pretty small, unobtrusive area.

Yes, clear plexiglass or a sheet of aluminum or any other metal. I like those ideas better than tile because you can remove them later on if you want.

They make wall protector sheets for offices. On Home Depot the have pet protector sheets that might work. https://www.homedepot.com/p/Cardinal-Gates-33-in-H-x-50-ft-L-Wall-Shield-Protection-from-Pet-Scratches-WS/204382467