The letter by 10 academicians or Academicians' letter (short names of "Open letter from ten Members of the Russian Academy of Sciences to the President"; Russian: Открытое письмо десяти академиков РАН президенту Российской Федерации В.В. Путину) is an open letter to the President of the Russian Federation in which ten notable scientists express their concern about rapid clericalization of Russian society. It was published on July 22, 2007.