Is it ever appropriate to address a fellow Service Member by last name alone?

I think in basic we all went through that but once you've had your brain altered and reprogrammed it should be rank and last name under most situations. I occasionally slipped and called soldiers E-4 and below by last names but corrected myself because it doesn't show the same respect that we ask for in return.

There is a time and place for everything. I think it is appropriate if that kind of relationship has been established.

When I was in our division mixed it up. Our division officer was Sir, ASWO, or Ens (later Lt.) Williams. If we were not just amongst our division it was always Sir. Our Chief was always just addressed as Chief, unless there were other chiefs present, then it was Chief Simmons. Petty Officer were addressed by their last name, or STG1,2, or 3 accordingly. It was never meant in a disrespectful manner, it was simply a culture of bonding that was encouraged. Hell I have a hat that says Big Pappa Spank because there were those who were convinced I would end up as a WWE wrestler of that name. 
If it was a person from outside of our division, it was always their proper title. CO was always Captain as that is the title he earned as commanding officer of a ship. 
Funny thing is that my step kids address me as "Sir"

It depends on the rank and who it is coming from. I would've rather had been called Sgt but my closest friends or fellow NCO's used to just call me V. Especially down range. Very informal attached to SF and I absolutely LOVED IT!

I see that if a peer of superior does it as fine. Most people don't like saying it twice! LOL

When u are addressing someone with a higher rank than yourself it is proper military custom and courtesy to use the rank when addressing them. This is just common sense but it does elude people from time to time and its just a simple on the spot correction and hope it sticks with them.

Good question, Burns, good question...

I picked "This is only appropriate coming from a peer or supervisor. " however, I would like to say I always adressed Soldiers by their rank that they earned. It should give them more pride in what they are and what they earned.

Depends on your unit, but with a last name that you can't help but annunciate a certain way - Van Ass(e) - I was fine with those above me calling me by last name only. Sgt. VanAss(e) to the younger airmen...

My BDE CSM called me Mike and I called him Sergeant Major. I am not a big fan of superiors calling juniors by their first name. I know the officers do it on a regular basis but as NCOs I don't think it sets the proper example.

Among peers I have no issues unless there are junior Soldiers around, then rank should be used.

I once had a E-1 who was fresh out of A school address me by my last name only. When all was said and done she was crying and calling me Petty Officer. I have a rank there junior, recognize it. Likewise I would also on occasion "respectfully request" that an officer (usually a junior officer) address me by my rank. Most senior officers and enlisteds called me by rank, and I them.

Well as you can see my last name is unique to the normal vocabulary lol. Probably 85% of every officer or enlisted of all ranked I've ever known called me "waiwai". Guess it's the perks of having a hard name to say! Other than that, I usually did it with peers or with others as the same level as me. But since I was in my command for about 5yrs I pretty much knew every single person in my company and almost every staff position in my battalion.

It's not the whole Air Force that does that people. Lol, It's mainly in the medical field and flying field. While I haven't seen it lately those are the only places I've really seen it. I have also in my career field seen subordinates attempt to call NCOs and COs by their call-sign, and proceeded to be torn a couple new ones. But as far as the question goes, you as a leader have earners that respect to be called by your rank and name. We as leaders must teach our younger members they aren't entitled to anything except a paycheck and even that can be taken away.

If my supervisor expects me to always address him with his rank, then I would want the same expectations the other way. In any more formal or professional manner I will always use rank and last name. I regular office work with the people I work with everyday we have frequently shortened down to just names or rank. Between peers we also don't tend to use rank. As long as no one is being disrespectful I see no reason to make a big deal out of it.

Hmmmm. Well I'll add the stereotypical Air Force way of doing things. As aircrew members we usually addressed each other by crew position. In uniform in the squadron we usually addressed each other by short title (i.e. Capt, Sgt..etc). When senior officers were in the area, then it was full rank and last name. Out of uniform it was usually first names or nicknames.

In some environments it's highly desired that you've gotten your shorthand down to this kind of thing. Even to nicknames that short circuit issues of having two or more folks named Joe.
Of course, Net Comms require a little more decorum so all can follow the conversation.
But generally in Office or typical outside the "workspace" Garrison environments I do think "Rank, Last name" should apply.
However, in p-p situations in the workspace it can be unnecessarily unwieldy to ask "Electronics Technician Two Johnson for a 3/ 16ths inch wrench", When, "Tim, 3/16ths?" can work just as well.

I think the first time I can remember being called by last name was high school football. Thereafter, bootcamp, and by some in my early years of service. Rare from an officer, and rare by all as I entered staff ranks. The forum, present company, and tone all play a part in how it will be received. Clearly, we do not out right use rank and name over a net. Aside from that most situations afford the time to use full rank and name. I'm not sure how I would take it today. I was never the most politicly correct guy in the world, but its important to remember that no matter the rank on a members collar.....they earned it.

I have always felt that if you expect someone to address you by your rank, than you should address them by theirs. Senior or subordinate ... makes no difference to me (and never has). Frankly, nothing burns my butt faster than someone (junior, peer, or senior) calling me by my last name.

It's cool, Burns...

No way. Callsigns only.