[Rjevski]

How anonymous do you want to be? Are you trying to hide from the recipient only, or also from their payment processors, or the government?

Each of these requirements has different solutions.

[e12e]

Do note that another term for absolute anonymous donations is "funding terrorism". So good luck hiding your donations entirely.

I suspect a sibling comment is correct - buy a visa/etc giftcard (perhaps with cash) and use that to donate online if the recipient accepts online payments - or send the card details via email, or the card via snail mail?

[dorianm]

Or more commonly "money laundering"

[hiaux0]

That's a valid perspective, thanks for mentioning.

> buy a visa/etc giftcard

I like that suggestion the best as well.

[therealidiot]

Not OP but if I wanted to donate without revealing identity to the recipient, what are my options?

[Rjevski]

Depending on the recipient's fraud checks you can simply use your credit card but use a fake name & address; if they don't decline the transaction then that's all you have to do.