Ardeonaig (Gaelic: Aird Eòdhanaig) is a hamlet on the southern shore of Loch Tay in the Stirling Council area of Scotland.

It is approximately 7 miles east of Killin and lies at the mouth of the Ardeonaig Burn where it enters Loch Tay.

[1] When boats operated by the Loch Tay Steamboat Company ran on the loch they stopped at Ardeonaig, where coal was delivered and passengers could disembark.

Now, fishing trips on Loch Tay stop at the Ardeonaig Hotel jetty to disembark for lunch before continuing down the Loch.

At Ardeonaig there was an outdoor centre, run by the Abernethy Trust.