I like FROG(S) and from what I read so far it matches most interests/needs in this threads.
While Fairdroid is catchy, I find this a bit problematic since there is nothing particular fair about it (many critic possible, like not google free, not open OS and so on). On the other side the “fair” in Fairphone stands very explicitely and concrete for values. So using it for the OS, which represents none of this values in particular, would in my opinion kinda “wash out” the expresison.
I like FROG/FROGS. FLOS (Fairphone Libre OS) is another interesting option. Also openFairphone OS is not bad.
I second @Sonne! I also prefer FROG/FROGS and like the idea to assign different species to the different versions 
Droidy McDroidFace?
I like “grapheme”. All those proposals with something “Fair” or “Fairphone” show lack of fantasy.My 0.02$: Nomad: “No Mobile Application Distribution”. Though the “no” in the name is a bit negative.
problematic if you translate: “more” or “less”
How about versioning them also alphabetically, but either name the versions after Dutch places (Dutch company after all), or after the places where the FairPhone’s coming from (production site, mines…).
Either way starting with the FP Amsterdam.
I suggest FROST. It’s cool (geddit?).
Make it an acronym somehow, like FROG, you know, FaiRphone Operating System Two or whatever.
I realy like FROG and Fairdroid
Fairdroid look like the app repository fdroid and it is open source but as it was already say, there is nothing fair in the fairphone open source os. It’s cool because it is without google service and open source BUT there is the “fair” from fairphone so it’s nice to hear that we running fairdroid on a fairphone.
FROG : Fairphone Realease Omitting Google is very nice because it say that there is any google services and it’s a funny name 
but this name doesn’t say that it’s an open source OS.
+1 for FROG and Fairdroid
Yeah! Like OS X.
But i would Start with FairOS (0.0.1 Amsterdam)
I was also thinking about “Open Amsterdam” or “Open Suzhou”.
But I also quite like @Hecki’s idea of “FairOS Amsterdam” and “FairOS Suzhou” 
I guess Fair OS is the best one. It sounds also reliable. I would also start with 0.0.1 (suzhou) so it shows it’s on growing. Suzhou would be good to show respect to the chinese workers.
Hello,
The things that come to my mind when I think of Fairphone are sustainable electronics, water, smiling people, sun, and Amsterdam.
I had the chance to come to Amsterdam, and people were always smiling, even when these were total strangers.
Another thing that defines the identity of Fairphone is that it’s a small company that wouldn’t betray its ideals, its customers or its partners, and that is very close of its customers.
Frogs are related to France, and this name should reflect the transparency of Fairphone (the aim of this is to provide an open-source OS without the closed-source apps of Google).
All of this makes me thing of the Rijks museum, so I’d suggest you this name : it gravitates around a huge, transparent hall with a lot of space and were people rest after having been in the museum all the day.
Will there be copyrights problem ?
Sustainable, huge, dynamic, resting, and transparent : this is what Fairphone makes me think of. Rijks OS, with a wallpapers set that shows this hall ?
I would not use Rijks as a name for the OS.
But why not as a version of Fair OS?
Fair OS 0.0.1-0.9.9 Suzhou
Fair OS 0.1.x Amsterdam
Fair OS 0.2.x Rijks
etc
Yeah, that would be great !
I would just highlight that there are to occurrences for Amsterdam.
Why not the Fairphone Open Source Project, as a take on the Android Open Source Project ?
+1 for FairOS 
Hey all!
After a long discussion in which all the ideas here on the forum were discussed we decided to go with
Fairphone Open OS
and we hope you like it!
We’d like to thank everyone for contributing their ideas in the forum and elsewhere. Finally we decided that Fairphone Open OS would be the best name for several reasons:
As for the extra of using ‘Amsterdam’ or ‘Rijks’ as release names; we currently will use [year.month] as a release scheme.
An extra name could be confusing, and as the Fairphone Open OS is in the end based on Android, we are tempted to stick with Lollipop/5 or Marshmallow/6 to indicate which version of Fairphone Open someone is using.
Once again thanks to all who contributed to this discussion that has helped us sharpen our ideas and guide or thoughts.
Best,
Douwe
Fairphone open OS is far to long. 
Why not Fair OS could be usw for both.
So the open OS could be named fair OOS 
What do you think about to start with Suzhou.
I think it’s a kind if respect, to the workers in China.
They worked hard to realize the Fairphone 2. 
Fair OS 0.0.1-0.9.9 Suzhou
Fair OS 0.1.x Amsterdam
Fair OS 0.2.x Rijks
etc
Fairphone Open Operating System, aka “FOOS”. For an average non-native speaker the “F” and “V” are hard to distinguish. To prevent confusion with the dutch word “voos” (rotten) I propose a minor modification to the name: “FOOS-with-an-F”
The decision in indeed final, but we can leave the topic open to discuss it further and if people have questions about the decision.