Peaty, 23, set the championship record time in the final on Wednesday in Glasgow, with Italy's Fabio Scozzoli (26.79) second and Slovenia's Peter Stevens (27.06) completing podium.
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Peaty again demonstrated why he may well be the most dominant swimmer in the sport as he recovered from a relatively sluggish start to get on terms by half-way before powering away over the final 25 metres to beat Italy's Scozzoli by a huge 0.7 seconds.
He had hoped his winning time might threaten his world record of 25.95 but had to settle for a third consecutive 50m championship record in two days and, incredibly, he now owns the 10 best-ever times in the event.
It is Peaty's third medal of the European Championships following the 100m breaststroke and the 4x100m mixed medley.
"I was kind of looking up to see if I'd broken the world record," shrugged the 23-year-old.
But it just proves that I can get near that world record now and maybe next year even touch it again.
He is still aiming for a fourth in the men's 4x100m relay.

WATCH: Dominant Peaty cruises to third gold

Peaty's victory on Wednesday takes him up to 11 European medals in total, making him the most successful British swimmer ever at the European Championships.
With additional reporting from Reuters
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