List of people known as the father or mother of something

The following alphabetical lists includes men and women commonly known as the father or mother of something. Whether each of these persons is genuinely the father or mother of this thing is a matter of opinion.

J

• Abraham Jacobi - The father of U.S. pediatrics
• Fredrick Jahn - The father of gymnastics
• Bill James - The father of modern baseball statistical study and sabermetrics
• Thomas Jefferson - The father of archaeology, the father of the University of Virginia
• Edward H. Johnson - The father of Electric Christmas tree lights
• Phillip E. Johnson - The father of intelligent design creationism
• Mary Harris Jones or Mother Jones - The "Grandmother of All Agitators".
• Fatima Jinnah - Mother of the Nation of Pakistan
• Theodore Judah - The father of the U.S. first Transcontinental Railroad