The 17-year-old, a left back tipped as a promising prospect for the future, is being loaned out by Premiership side Kilmarnock.
He only made his debut for the East Ayrshire team earlier this month against Dunfermline but he’s a regular in their development squad, having played for them in the Scottish FA Youth Cup Final last season.
He’s also appeared at under-17 level for Northern Ireland.
The youngster goes straight into Bairns bosses Lee Miller and David McCracken’s squad for tomorrow’s home game against Forfar, kicking off at 3pm.
Miller said: “Euan is a great young player that we’ve been looking at for a number of weeks now.
"He’s a really exciting prospect, and we’re looking forward to seeing what he has to offer.”
McCracken added: “We’ve been looking to add a defender to the squad to add more depth and competition for places.
"I’m sure Euan will be focused on getting into the first team, and it can only be good for the squad as we go into our first home league game of the season tomorrow.”
1. New Falkirk loan signing Euan Deveney. Photo: Ian Sneddon
New Falkirk loan signing Euan Deveney. Photo: Ian Sneddon Photo: Ian Sneddon