Three per cent of those who expressed regret said there had been a "shift in public perception of the name since my child was born".
For a third of those who changed their mind about their child's name, regrets emerged within the first six weeks. For 23 per cent, the catalyst was their child starting school or nursery.
Mumsnet founder Justine Roberts told the BBC: "Choosing your baby's name is one of the first things new parents do, so in some ways baby name regret is great practice for parenting - you do a lot of hard work and research, try to please several people at once, and end up getting it wrong.
"The consolation is that most children grow into their names, and those who don't can always fall back on middle names, nicknames or, in extremis, deed polls."