Given name & surname
Diago
Diago is a masculine given name from Latin. It is used in Old Galician-Portuguese.
Original LatinDidacus
Meaning & origin
The story
Published U.S. birth records include this spelling as early as 1996. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Diago through the years
- Babies since 1880
- 419
- 419 boys · 0 girls
- Most popular year
- 2021
- 40 babies
- 2025
- 27
- #3,974 for boys
- 2021–25 vs 2016–20
- +67%
- Rising fast
Where it’s given
By the numbers
In 2025, this name appeared in 27 U.S. birth records for boys, ranking No. 3,974 among boys’ names. Average annual use for boys was 67.4% higher in 2021–2025 than in 2016–2020. In 2025, Florida had the largest reported state-level birth count for boys with this name (8). Published U.S. population figures for this spelling include 816 as a first name in 2020; 305 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Diago’s family of names
In Spanish usage, Diago has a conventional equivalent in the Italian form Giacomo. In Old Galician-Portuguese usage, Diago continues an earlier form in DIDACUS.
The ring: across languages.
Across languages 7
Equivalents and cognates in other languages, plus older forms it grew from.
See also 6
Names our sources mention alongside this one. They are related in story or meaning, not forms of this name.
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