Maddox
BoyWelsh· “son of Madoc”
- Meaning
- son of Madoc
- Origin
- Welsh
- Pronunciation
- MA-duhks
- Syllables
- 2
- US rank 2025
- #210
- US babies 2025
- 1,664
- Best rank
- #136 (2017)
- Peak year
- 2017
Meaning and origin of Maddox
Maddox is a Welsh name that means “son of Madoc”.
Maddox is a Welsh surname meaning "son of Madoc." Madoc, or Madog, is an old Welsh personal name thought to come from mad, "fortunate" or "good." Madog ap Maredudd was a twelfth-century prince of Powys, and a legendary Prince Madoc is said in later stories to have sailed across the Atlantic long before Columbus. As a first name, Maddox became widely known in the early twenty-first century and quickly gained popularity in the United States. It has a bold, energetic sound with its strong x ending. Mad and Dox are informal nicknames, and the spelling Madox also appears.
Other spellings with the same sound: Maddux.
Popularity over time
Maddox first appears in US Social Security records in 1995. It has ranked in the top 1,000 in 23 different years, starting in 2003. Its best national rank was #136 in 2017, the same year it reached its highest count of 3,044 babies. In 2025, 1,664 babies were named Maddox, and it ranked #210 nationally. That is 40% fewer than ten years earlier, so it is becoming less common.
Its national rank moved from #4,952 in 2000, #179 in 2010, and #210 in 2025. Of the 47,119 US boys named Maddox since records began, 54% were born in the 2010s, its biggest decade. The 2020s come next, with 11,843 babies.
Other boys' names that peaked around the same time include Ryker, King, Abraham, Harrison, and Xander.
Where it is most popular (2025)
In 2025, Maddox ranked highest in Vermont, West Virginia, and Wyoming.
| State | Rank there | Babies |
|---|---|---|
| Vermont | #75 | 7 |
| West Virginia | #78 | 24 |
| Wyoming | #111 | 5 |
| Mississippi | #115 | 28 |
| Maine | #137 | 10 |
Gender, sound and spelling
About 96% of US babies named Maddox over the last 20 years were boys, with a small share of girls.
Maddox is usually pronounced MA-duhks, with two syllables. It has six letters, starts with M and ends in “-ox”. Names that sound the same but are spelled differently include Maddux.
Middle names for Maddox
A few middle names that flow with Maddox: each avoids a matching first letter, a rhyme and a vowel clash where the names meet.
Sibling names for Maddox
Similar names
Lists that include Maddox
Frequently asked questions
What does the name Maddox mean?
Maddox is a Welsh name that means “son of Madoc”.
What is the origin of the name Maddox?
Maddox has Welsh roots. Maddox is a Welsh surname meaning "son of Madoc." Madoc, or Madog, is an old Welsh personal name thought to come from mad, "fortunate" or "good." Madog ap Maredudd was a twelfth-century prince of Powys, and a legendary Prince Madoc is said in later stories to have sailed across the Atlantic long before Columbus.
Is Maddox a popular name?
Yes. Maddox ranked #210 in the US in 2025, which makes it in the top 1,000.
Is Maddox a boy or girl name?
Maddox is mainly a boy's name. About 96% of US babies named Maddox over the last 20 years were boys, with a small share of girls.
How do you pronounce Maddox?
Maddox is usually pronounced MA-duhks. Stressed syllables are in capital letters.
Popularity figures come from US Social Security card applications (names given to at least five babies in a year, 1880 to 2025). How we source names and meanings