Johnson, 21, currently out of the Chelsea starting line-up, is considered one of the best prospect in English football and French champions Lyon are keen to land the former West Ham defender.
Michel Aulas has confirmed the French league leaders are interested in Chelsea defender Glen Johnson.
The 21-year-old's current lack of first-team action at Chelsea may affect his World Cup prospects with England.
Lyon are set to lose several defenders to African Cup of Nations call-ups.
Lyon president Jean-Michel Aulas confirmed: "Glen Johnson is on the list of players we are following closely but it does not only depend on us but on Chelsea too."
Johnson moved to Chelsea from West Ham for £6m in July 2003 but has made only three Premiership appearances this season.
Johnson has not played for Chelsea in the Champions League this season and would therefore be available to play in the competition.