At a glance
- In short
- Tadeo is the Spanish form of the Aramaic-Greek name Thaddaeus, traditionally interpreted as “heart,” “courageous heart,” or, in some readings, “gift of God.”
- U.S. rank 2025
- #427 of boy names
- Babies in 2025
- 753 (0.041% of boys)
- Trend
- Rising #702 in 2020 to #427 in 2025
- Peak
- #412 in 2024
- First recorded
- 1968
Meaning of Tadeo
Tadeo is the Spanish form of the Aramaic-Greek name Thaddaeus, traditionally interpreted as “heart,” “courageous heart,” or, in some readings, “gift of God.” In the New Testament the bearer is the Apostle Jude Thaddeus—San Judas Tadeo to the Spanish-speaking world—whose image fills churches and street-corner altars from Mexico City to Buenos Aires, making the name an instant bridge to Latin Catholic devotion and its Oct. 28 feast-day rituals. That cultural weight has not slowed its modern appeal: U.S. birth records show Tadeo nearly doubling in use since 2020, landing at rank 377 with 781 newborns in 2024, a clear sign that parents searching for a faith-linked, cross-border choice are tuning in. The pronunciation, tah-DEH-oh, rolls off the tongue with the open vowels typical of Spanish, yet stays simple enough for English speakers, giving the name a pragmatic bilingual edge. Long favored in Latin America, Tadeo now finds itself in the same North-American growth lane as Mateo and Santiago—a concise, energetic option that carries centuries of tradition without sounding dated.
How to pronounce Tadeo
Spanish
- Pronounced tah-DEH-oh /ta.ˈðe.o/
Popularity of Tadeo in the U.S.
Tadeo was the #427 boy name in the U.S. in 2025, with 753 babies. It peaked at #412 in 2024 and has been in the top 1,000 since 2016. It first appears in the records in 1968.
- Rank among U.S. boy names (right scale, #1 at the top)
Year-by-year table, 1968–2025 37 rows
| Year | Babies | Rank | vs previous year |
|---|---|---|---|
| 2025 | 753 | 427 | ▼ 15 |
| 2024 | 782 | 412 | ▲ 61 |
| 2023 | 642 | 473 | ▲ 48 |
| 2022 | 568 | 521 | ▲ 77 |
| 2021 | 465 | 598 | ▲ 104 |
| 2020 | 361 | 702 | ▲ 29 |
| 2019 | 331 | 731 | ▲ 106 |
| 2018 | 266 | 837 | ▼ 4 |
| 2017 | 266 | 833 | ▲ 111 |
| 2016 | 221 | 944 | ▲ 105 |
| 2015 | 189 | 1,049 | ▲ 3 |
| 2014 | 189 | 1,052 | ▲ 128 |
| 2013 | 152 | 1,180 | ▲ 446 |
| 2012 | 95 | 1,626 | ▲ 169 |
| 2011 | 80 | 1,795 | ▲ 444 |
| 2010 | 58 | 2,239 | ▲ 608 |
| 2009 | 42 | 2,847 | ▼ 610 |
| 2008 | 59 | 2,237 | ▲ 327 |
| 2007 | 48 | 2,564 | ▼ 87 |
| 2006 | 49 | 2,477 | ▲ 614 |
| 2005 | 33 | 3,091 | ▲ 126 |
| 2004 | 30 | 3,217 | ▼ 370 |
| 2003 | 34 | 2,847 | ▲ 707 |
| 2002 | 24 | 3,554 | ▲ 748 |
| 2001 | 18 | 4,302 | ▲ 1,618 |
| 2000 | 11 | 5,920 | ▼ 603 |
| 1999 | 12 | 5,317 | ▲ 997 |
| 1998 | 9 | 6,314 | ▲ 2,951 |
| 1997 | 5 | 9,265 | back (not recorded in 1994–1996) |
| 1993 | 9 | 5,771 | ▲ 2,664 |
| 1992 | 5 | 8,435 | ▼ 2,493 |
| 1991 | 8 | 5,942 | ▲ 2,175 |
| 1990 | 5 | 8,117 | ▼ 1,888 |
| 1989 | 7 | 6,229 | back (not recorded in 1988) |
| 1987 | 6 | 6,089 | ▼ 163 |
| 1986 | 6 | 5,926 | back (not recorded in 1969–1985) |
| 1968 | 5 | 4,136 | new |
Tadeo by state
Tadeo ranks #192 in California (2025).
Rank by state 32 states
| State | Rank | Babies |
|---|---|---|
| California | 192 | 192 |
| Arizona | 225 | 36 |
| Texas | 252 | 155 |
| Oregon | 263 | 16 |
| New Mexico | 270 | 7 |
| Washington | 301 | 25 |
| Illinois | 306 | 35 |
| Idaho | 332 | 7 |
| Arkansas | 353 | 9 |
| Colorado | 385 | 16 |
| Nevada | 389 | 7 |
| Georgia | 407 | 28 |
| North Carolina | 407 | 27 |
| Alabama | 422 | 12 |
| South Carolina | 438 | 11 |
| Kansas | 524 | 6 |
| Utah | 561 | 7 |
| Iowa | 571 | 5 |
| Tennessee | 592 | 12 |
| Missouri | 597 | 9 |
| Wisconsin | 618 | 7 |
| Oklahoma | 621 | 6 |
| Kentucky | 625 | 6 |
| Ohio | 676 | 13 |
| Minnesota | 718 | 6 |
| Pennsylvania | 792 | 10 |
| Virginia | 798 | 8 |
| Florida | 809 | 18 |
| Michigan | 829 | 8 |
| New Jersey | 829 | 7 |
| New York | 844 | 16 |
| Indiana | 844 | 6 |
Notable people named Tadeo
- Tadeo Zarratea Dávalos is a Paraguayan lawyer, activist, linguist, and author.