Joshua Cohen may refer to:

• Joshua Lionel Cowen (1877–1965), born Cohen, American inventor
• Yehoshua Cohen (1922–1986), Israeli assassin
• Joshua Cohen (philosopher) (born 1951), American philosopher
• Joshua J. Cohen (born 1973), mayor of Annapolis, Maryland
• Joshua Cohen (writer) (born 1980), American writer
• Josh Cohen (basketball) (born 2001), American basketball player
• Josh Cohen (tennis) (born 1984), American tennis player, head coach of Philadelphia Freedoms
• Josh Cohen (soccer) (born 1992), American soccer player