| John-David Duggar | |
| Birth Name:: | John-David Duggar |
| Nickname(s):: | ' |
| Born:: | January 12, 1990 (age 25) |
| Number:: | 3 |
| Spouse(s):: | ' |
| Children:: | ' |
| Parents:: | James Robert "Jim Bob" Duggar (father), Michelle Annette Duggar (mother) |
| Siblings:: | Josh, Jana, Jill, Jessa, Jinger, Joseph, Josiah, Joy-Anna, Jedidiah, Jeremiah, Jason, James, Justin, Jackson, Johannah, Jennifer, Jordyn-Grace & Josie |
John-David Duggar is the third child, and second son of Jim Bob Duggar and Michelle Duggar. He is 25 years old, and Jana's fraternal twin brother. He is a police officer.