Cotterill - who represented his country 24 times between 2005 and 2018, and also made 18 Premier League appearances for Wigan Athletic - has shared multiple conspiracy theories in recent years.
A frequent critic of the mainstream media, the 37-year-old once suggested that the Uvalde school shooting in Texas, which killed 21 people in 2022, had been a stunt involving 'crisis actors'.
His outrageous suggestion on that occasion appeared to be that a 'false flag event' had been staged with the intention of convincing the American public that guns needed to be banned.
What Cotterill apparently believes links Bonnie Blue, 25, and Russia's war with Ukraine is far less clear.
On Saturday morning, Cotterill tweeted on X (formerly Twitter): 'It's funny this clown woman sleeping with a thousand men is coming out when Ukraine have been exposed. It's all done by design to distract people. Wakey Wakey.'
David Cotterill, pictured playing for Wigan in 2006, has shared a bizarre conspiracy theory linking porn star Bonnie Blue to the media's coverage of the war in Ukraine
Bonnie Blue, whose real name is Tia Billinger, hit the headlines last month after she claimed to have had sex with 1,057 men in 12 hours.
Meanwhile, US president Donald Trump recently made false claims that Ukraine had 'started' its war with Russia.
Ukraine was invaded by Russian troops in February 2022, eight years after Russia had annexed Crimea in March 2014.
But Trump, while boasting about his ability to end a conflict that has already cost more than 12,000 lives, recently said of Ukrainian president Volodymyr Zelenskyy: 'You've been there for three years. You should have ended it. You should have never started it. You could have made a deal.'
Cotterill was widely mocked following his latest tweet.
One X user replied: 'Are you ok? Did you head the ball a bit too often?'
Another wrote: 'Thanks for waking me up pal. Now what do I do with this information? Lead me, guide me.'
A third reply asked: 'Does forming these thoughts cause you physical pain?'
Bonnie Blue made headlines when she claimed to have had sex with 1,057 men in just 12 hours
More than 12,000 people have died in the war since Russia invaded Ukraine in February 2022
Cotterill, pictured playing for Birmingham in 2017, often shares his conspiracy theories online
But Cotterill defiantly hit back by posting six laughing emojis alongside another message.
It read: 'People are miles off it. So many are only just gathering covid was all corrupt.
'They aren't ready for the Ukraine s*** yet…'
Cotterill retired from football in 2018 after playing for nine different clubs - Bristol City, Wigan, Sheffield United, Swansea City, Portsmouth, Barnsley, Doncaster Rovers, Birmingham City and ATK in India.
He later came out of retirement to play for Barry Town United and Newtown in his native Wales.
UkraineRussiaWigan AthleticBonnie Blue