Where can I buy this Peugeot decal/badge? Its located on the seat tube of my PSV-10. Its located on the non-drive side but its missing from the drive side. Haven't seen it on ebay, hoping to find it for a non-ridiculous price.

Is that a decal? Looks like an applied badge.

Right, its not a sticker, its a badge but its not the head badge.

I think there's a bunch at eBay for sale presently. Just search for "Peugeot" under the "sporting goods" category. You might not find an exact decal set for a PSV, but some of the lion logo decals were shared between models. You might just have to just find the right set with the same color/size lion decal for your bike.
BTW, that's the head tube badge (82/83 model?) you are showing on your pic, not the side seat tube decal.

Chombi

No, while the head badge is the same logo, the picture is different badge on the tubing. The headbadge is approximately 1.75" tall, the seat tube badge is 1.00" tall. I haven't been able to find a match in the catalogs to my PSV-10 (identified by serial number) but I have seen another with the same badging online. Here's another badge on the top tube.

Edit: Actually it looks like it could be the 1982 French PSV-10S

I don't think that top tube badging in the pic was present on US PSVs. Your bike might have been a Euro version of the PSV.
I'm trying to remember from what I saw in catalogues and dealers showroom in the 80's. My 1984 PSV's decals and paintjob is entirely different:


Chombi

Chombi

are you sure its supposed to be on both sides? the Grand Sport i have only has the "grand sport" decal on one side