The EuroMillions winning numbers were 06, 23, 27, 40, 41 – plus the Lucky Star numbers 02 and 12.
A ticket matching all seven numbers to win £195,707,000.00 – making her the biggest jackpot winner of all time.
Only 15 UK players have ever won a jackpot of more than £100m, with the previous record holder being an anonymous winner of £184m in May this year.
Camelot’s Andy Carter, Senior Winners Adviser at The National Lottery, said: “What an amazing night for a UK ticket holder to hit the biggest EuroMillions jackpot ever of £195m.
“This winner has just become the biggest national lottery winner of all time, the fourth lucky EuroMillions jackpot winner here this year and the 15th UK winner of over £100m.
“Players are urged to check their tickets and call us if they think they are tonight’s record-breaking lucky winner.”