Yes. Anyone you send the link to can open an Anyone with the link or Public wishlist without creating an account or signing in. The only exception is an Invite only wishlist.

New wishlists are Anyone with the link by default, so the link works for everyone you share it with — no account needed.

People viewing without an account get a temporary guest session. That matters if they reserve something: sign up in that same session (without switching device or browser) and the reservation transfers to the new account. A reservation made in a different session or on another device isn't linked.

An Invite only wishlist doesn't open for just anyone. People who aren't signed in, or who weren't invited, see a "No Access" page that says the owner has restricted access. To share a private wishlist, invite specific people by email. See "How do wishlist privacy settings work?"

Want to know what a guest can actually do once they open your wishlist? See "What can guests do on my wishlist?"