According to United Arab Emirates news agency:
Today, Islam is the second-largest religion in Russia, with approximately 26 million followers, or 15% of the total population. Estimates suggest that Muslims will make up one-third of Russia’s population by 2050.
https://www.wam.ae/en/article/13tpze9-islam-russia-unique-blend-history-modernity
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Muhammad has been revealed as the most popular name in the UK for newborn babies, according to an annual survey by parenting advice resource Baby Centre. The Muslim boy's name, which is also spelled Mohamed, Muhammed, Mohammad, is constantly the top choice for parents naming their sons in the UK