Cynwyl Gaeo is a parish and community located in rural Carmarthenshire, Wales, near the boundary with Ceredigion, in the upper Cothi valley about halfway between Lampeter and Llandovery. The population of the village at the United Kingdom Census 2011 was 940. It includes the villages of Caeo (or Caio), Crug-y-bar, Cwrtycadno, Ffarmers and Pumsaint.
Historically it was part of the commote of Caeo, which in turn was part of Y Cantref Mawr ("The Great Hundred"), a division of Ystrad Tywi.
It is the location of the Dolaucothi Gold Mines, part of Dolaucothi Estate, whose owner, John Johnes, was murdered by his butler in 1876. The mansion house was demolished in 1952.
The parish church of St Cynwyl in the village of Caeo is a Grade II* listed building.
An electoral ward in the same name exists. This ward stretches south to Llansawel. The total population of the ward at the 2011 Census was 1,613.
The community is bordered by the communities of: Cilycwm; Llanwrda; Llansadwrn; Talley; Llansawel; Pencarreg; and Llanycrwys, all being in Carmarthenshire; and by Llanfair Clydogau and Llanddewi Brefi in Ceredigion.
Cynwyl Gaeo is an electoral ward, representing the communities of Cynwyl Gaeo, Llansawel and Llanycrwys, Carmarthenshire, Wales.
In 2014, the Cynwyl Gaeo electoral ward had an electorate of 1,323. The total population was 1,630, of whom 54.5% were born in Wales. The 2011 census indicated that 46.7% of the population were able to speak Welsh.
Cynwyl Gaeo is a single-member ward for the purposes of Carmarthenshire County Council elections. Since 1999 it has been represented by Plaid Cymru councillor Eirwyn Williams.
A sublime gesture from an insane mind
Majestic fairy spreads her wings to fly
Her levitation takes my blues away
I see her sunrise bring another day
Oh yeah
A porpoise sunrise in a turquoise land
A purple turtle with his head in sand
The sweet sensations of a neon sun
My psychedelic dream has just begun
Oh yeah
Animated romance at the rainbow's end
Riding on a mushroom as my soul transcends
I can chase the planets, set the moon on fire
Snail Hook is rising, takes your body higher
As masses gather on the hill of dreams
Patiently waiting for Horizon Queen
She arrives upon a mushroom cloud
A million snails scream their fears aloud
Medieval soldiers surf a lake of wine
A silver spaceship flies inside my mind
Galactic mountains grow inside my brain