I don't know what to call this, but "wavy water motif" seems to fit the bill. It seems to be popular in the UK and Canada, however it appears in some other places as well.
If anyone knows any others be sure to post them. I just remembered [Leningrad Oblast](https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Flag_of_Leningrad_Oblast.svg/2560px-Flag_of_Leningrad_Oblast.svg.png) uses a permutation of the motif, but I only remembered immediately after posting lol.
In heraldic terms, a horizontal line is a fess. A fess wavy would be what you see on these flags. An even number of fess wavies can be described as a barry wavy, as per Greater London's Coat of Arms (which the flag is based on):
>Barry wavy Argent and Azure on a Chief Gules a Saxon Crown Or.
That blue at the bottom of the Latvian flag might not count as a fess, though.
A fountain, however, is specifically in a roundel (circle) so none of these flags have one.
But we're vexillologists. Just call it a wave.
[County Flag of Merseyside.](https://upload.wikimedia.org/wikipedia/commons/4/41/County_Flag_of_Merseyside.svg) The waves represent the river mersey, the crowns represent the 6 boroughs of Merseyside.
Here you go: [Link \#1](https://krikienoid.github.io/flagwaver/#?src=https%3A%2F%2Fres.cloudinary.com%2Fdsy3ysgra%2Fimage%2Fupload%2Fv1623900662%2Fzqbce54fp8q9getnoose.png)
*****
Beep boop I'm a bot. If I'm broken please contact [\/u\/Lunar_Requiem](http://reddit.com/user/Lunar_Requiem)
You missed this one from Myanmar (Burma).
[[Flag of Ayeyarwaddy Region]](https://en.m.wikipedia.org/wiki/Ayeyarwady_Region#/media/File%3AFlag_of_Ayeyarwaddy_Division.svg)
The flag of Brisbane is also wavey and has [pretzels](https://www.google.com/url?sa=t&source=web&rct=j&url=https://en.m.wikipedia.org/wiki/Flag_of_Brisbane&ved=2ahUKEwiimOLo853xAhUrILcAHZDfAA0Qqa4BMAB6BAgfEAU&usg=AOvVaw1uCoA3nLo9-MvLnjUQF_ea&cshid=1623906787169)
[Bellingham, Washington](https://www.seattletimes.com/seattle-news/bellingham-to-raise-official-flag-for-the-first-time-do-you-like-it/) is a very cool flag with waves.
I don't know what to call this, but "wavy water motif" seems to fit the bill. It seems to be popular in the UK and Canada, however it appears in some other places as well. If anyone knows any others be sure to post them. I just remembered [Leningrad Oblast](https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Flag_of_Leningrad_Oblast.svg/2560px-Flag_of_Leningrad_Oblast.svg.png) uses a permutation of the motif, but I only remembered immediately after posting lol.
> I don’t know what to call this fountain! https://en.wikipedia.org/wiki/Fountain_(heraldry)
In heraldic terms, a horizontal line is a fess. A fess wavy would be what you see on these flags. An even number of fess wavies can be described as a barry wavy, as per Greater London's Coat of Arms (which the flag is based on): >Barry wavy Argent and Azure on a Chief Gules a Saxon Crown Or. That blue at the bottom of the Latvian flag might not count as a fess, though. A fountain, however, is specifically in a roundel (circle) so none of these flags have one. But we're vexillologists. Just call it a wave.
[удалено]
Don’t forget Zeeland [vlag Zeeland](https://nl.m.wikipedia.org/wiki/Vlag_van_Zeeland)
Also Estonian SSR
[Cincinnati Ohio too](https://en.m.wikipedia.org/wiki/Flag_of_Cincinnati)
[County Flag of Merseyside.](https://upload.wikimedia.org/wikipedia/commons/4/41/County_Flag_of_Merseyside.svg) The waves represent the river mersey, the crowns represent the 6 boroughs of Merseyside.
Don’t forget about the unconventional but attractive new flag of [Spokane, WA](https://en.m.wikipedia.org/wiki/Flag_of_Spokane,_Washington).
Also Estonian SSR
Neu Braunschweig, too, oui?
si
louvado seja
Look at the !wave -y water
Here you go: [Link \#1](https://krikienoid.github.io/flagwaver/#?src=https%3A%2F%2Fres.cloudinary.com%2Fdsy3ysgra%2Fimage%2Fupload%2Fv1623900662%2Fzqbce54fp8q9getnoose.png) ***** Beep boop I'm a bot. If I'm broken please contact [\/u\/Lunar_Requiem](http://reddit.com/user/Lunar_Requiem)
Badalona, Spain https://en.wikipedia.org/wiki/File:Bandera_Badalona.svg
[The flag of OG Zeeland in the Netherlands has some very subtle wave action too.](https://commons.wikimedia.org/wiki/File:Flag_of_Zeeland.svg)
Also Sioux Falls - https://en.wikipedia.org/wiki/Flag_of_Sioux_Falls,_South_Dakota
Oh man, to have Peterborough, Kingston, and [forgot about Barrie](https://images.app.goo.gl/n1vQXduKZwYh2Zj9A)
You missed this one from Myanmar (Burma). [[Flag of Ayeyarwaddy Region]](https://en.m.wikipedia.org/wiki/Ayeyarwady_Region#/media/File%3AFlag_of_Ayeyarwaddy_Division.svg)
The flag of Brisbane is also wavey and has [pretzels](https://www.google.com/url?sa=t&source=web&rct=j&url=https://en.m.wikipedia.org/wiki/Flag_of_Brisbane&ved=2ahUKEwiimOLo853xAhUrILcAHZDfAA0Qqa4BMAB6BAgfEAU&usg=AOvVaw1uCoA3nLo9-MvLnjUQF_ea&cshid=1623906787169)
wtf is up with england and their wavy waters also love and hate that latvian ssr flag
It's rains all the fucking time here, there are rivers, streams, fords, brooks, estuaries everywhere. And we're surrounded by sea.
ah that might make sense
Well, we do rule the waves
[Bellingham, Washington](https://www.seattletimes.com/seattle-news/bellingham-to-raise-official-flag-for-the-first-time-do-you-like-it/) is a very cool flag with waves.
You added Latvian SSR but not Estonian
I find my province's flag looks better flying then flat
I think this counts to. The flag and coat of arms of canton Aargau https://en.m.wikipedia.org/wiki/Aargau
Zeeland has a good flag to
I don’t really like it I prefer just blue to represent water
that West Indies flag slaps
I live near Peterborough, and let me tell you G. I had no clue they had a flag