First I thought mermaid, modified.

https://www.target.com/p/23-x23-monika-strigel-really-mermaid-mystic-blue-floor-pillow-blue-deny-designs/-/A-53626919?ref=tgt_adv_XS000000&AFID=bing_pla_df&fndsrc=tgtao&DFA=71700000012733992&CPNG=PLA_Home%2BDecor%2BShopping&adgroup=SC_Home%2BDecor&LID=700000001230728&LNM=PRODUCT_GROUP&network=o&device=c&location=&targetid=pla-4585581967312127&ds_rl=1246978&ds_rl=1248099&ds_rl=1247068&msclkid=b89d463282631eeb33a819aa46ce6abc&gclid=b89d463282631eeb33a819aa46ce6abc&gclsrc=3p.ds

https://www.amazon.com/dp/B00SMT9SXG?tag=amz-mkt-edg-us-20&ascsubtag=1ba00-01000-a0029-win10-other-nomod-us000-pcomp-feature-pcomp-wm-6&ref=aa_pcomp&th=1

Ogee drop, maybe? Or this website offers up a word salad of alternatives: Moroccan Scales Mosaic Tiles Scallop Shapes Oriental Traditional Pattern Arabesque

https://www.amazon.com/Emvency-Waterproof-Maroccan-Traditional-Arabesque/dp/B07KS25L2C

Getting closer. Seems it's definitely an Art Deco 'fan' pattern of some sort...

Definitely a fan shape. And the material looks like a velvet.

I would say it’s an Art Deco or Art Nouveau clam shell pattern, not fans.

Hmm, this is interesting. Just says vintage, but also clam shell pattern:

https://www.worthpoint.com/worthopedia/vintage-chenille-bedspread-clamshell-1871142242

I know this is from a Sherwin Williams paint ad, I wish they could tell us! 😄

Or Lizard scales?

Maybe a leaf pattern.

That is not Art Deco

This is Art Deco Fan Pattern.

Close enough

This is what i meant by lizard scale pillow:

Similar.

It's similar here, too.

In jacquard upholstery fabrics, it's called a shell pattern.

https://www.kovifabrics.com/search/product_detail/4899

https://www.archiexpo.com/prod/loome-fabrics/product-150328-1789571.html

Ikat is a technique, not a pattern. Or rather, it's several techniques, involving both the dyeing (resist) and the weaving. Velvet is a common fabric, either cotton or silk.

These are all examples of ikat velvet pillows,

https://www.pillowmehome.com/collections/ikat-velvet-pillow-covers

Another similar ... called geometric in this ad:

https://www.nordstrom.com/s/villa-home-collection-hollis-decorative-pillow/4452806

Jinx because of that pic, we are 1 step closer!

similar here too!

This more like Zebra-Shell Pattern Pillow

We have another contender!

“Art Deco Peacock Feathers” ...

This is fun. 😄

Am I the only one who consistently wants to respond to these naming threads with "Steve" or "Vivian"?

Yeah. Probably.

Ocotillo 😆

I absolutely love Vivian (was my mother’s name), so I’m on board for calling this pattern by that name! It fits, ya know? Mod elegance. Movie star. :)

If it was tile, it'd be called fish scale. A fish named Vivian...

Looks like an 80's rendition of an Art Deco idea. I had a chair upholstered in a dark green fabric with little embroidered pink fans similar to that in the 80's.