The ex-Ukip leader and GB News host tweeted: ‘A global megastar is born,’ and called her win ‘incredible’.
But some questioned his support of the teenager — born in Canada to Romanian dad Ian and Chinese mum Renee — after his past remarks.
In 2014, Mr Farage said: ‘If a group of Romanian men moved in next to you, would you be concerned? If you lived in London, I think you would be.’
He later withdrew his comments and said he regretted them.
However, many on Twitter did not allow him to forget.
One critic tweeted: ‘Hypocrite, you don’t get to praise her winning when you wouldn’t even have her in the country.’
Byline Times journalist Sam Bright wrote: ‘Emma is a national icon. You’re a national embarrassment’, sharing a headline including Farage’s comments.
Former football star Gary Lineker added: ‘He won’t be able to afford to live next door to Emma Raducanu so he needn’t worry.’
Raducanu received a check worth £1.8 million for her maiden Grand Slam win.
The teenager made history on Saturday, becoming the first ever qualifier to win the title and the first British woman to do so in 44 years.
Farage is not the only public figure to have been attacked for a perceived disingenuous congratulations sent to the tennis sensation.
Piers Morgan also came under fire as he tried to claim that Raducanu’s victory, which came three months after she completed her A-levels, was because she had taken his advice.
The teenager was forced to withdraw from Wimbledon in July after suffering breathing difficulty, but Morgan attacked her at the time, claiming she ‘couldn’t handle the pressure and quit when she was losing badly’.
The former Good Morning Britain host was reminded of the comments after he congratulated her US Open Victory, with followers branding him ‘shameless’ and ‘two faced’ for trying to take credit for it.
While he was full of praise for the tennis star, it wasn’t long before he was doubling down on his past comments.
One critic tweeted: ‘A bad day for Piers Morgan means a huge win for mankind. Maybe people should try a little more to encourage young talents instead of dragging them down.’
Morgan replied: ‘A bad day? I’ve been totally vindicated. She took my advice and won.’
Raducanu’s victory led to praise from royalty, other sports stars and celebrities who were gripped by her remarkable and unprecedented success.
Following her win, the Queen congratulated the teenager, saying: ‘It is a remarkable achievement at such a young age, and is testament to your hard work and dedication.’
She added: ‘I have no doubt your outstanding performance, and that of your opponent Leylah Fernandez, will inspire the next generation of tennis players. I send my warmest good wishes to you and your many supporters.’
Boris Johnson wrote: ‘What a sensational match! Huge congratulations to @EmmaRaducanu.
‘You showed extraordinary skill, poise and guts and we are all hugely proud of you.’
Labour leader Sir Keir Starmer tweeted: ‘What a winner. A true British hero. Congratulations @EmmaRaducanu on an inspirational win. From qualifier to champion without dropping a set. A phenomenal achievement.’
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