Nameling

Alethea

Gender
Girl
Say it
a-LEE-thee-a
Origin
Greek
UK rank, 2025
#2,856 for girls
US rank, 2025
#3,028 for girls

Alethea is a girls' name of Greek origin, meaning “truth”. In 2025 it ranked 2,856th for girls in the UK (9 babies) and 3,028th for girls in the US (54 babies).

What does Alethea mean?

Greek

“truth”

From Greek aletheia, 'truth'; it has been used as an English name since the 17th century.

More on Wiktionary.

Is Alethea a girl's or a boy's name?

Alethea is a girls' name. In 2025, it was given to 9 girls in the UK and 54 girls in the US. Too few boys were given it to be listed.

How popular is Alethea in the UK?

Rank in 2025
#2,856among girls
Babies in 2025
9about 1 in 31,000 girls
Five-year trend
Fallingdown 38% in five years
Same name in a class
under 1%chance among 15 girls

In 2025, 9 girls in the UK were named Alethea, making it the 2,856th most popular name for girls. Five years earlier, in 2020, it was 2,159th. Its busiest year was 2012, with 18 girls.

Half of all the girls named Alethea in the UK since 1996 were born between 2006 and 2019. It was already well used in 1996, when the records begin, so earlier girls aren't counted.

In 2025, 18 girls in the UK were given Alethea or a name that sounds the same. With every name's spellings counted this way, that ranks #1,459, up from #2,856 for this spelling alone.

Among girls in 2025, it was 2,786th in England and Wales.

1996Busiest: 18 in 20122025
Alethea in the UK, year by year
YearGirlsRank
20259#2,856
20248#3,076
202311#2,481
202212#2,277
202116#1,882
202013#2,159
201918#1,729
201814#2,088
201714#2,099
201617#1,853
201516#1,900
201413#2,189
201310#2,599
201218#1,756
201115#1,917
201016#1,829
200912#2,153
20086#3,589
20079#2,543
20067#2,940
200513#1,807
20047#2,669
20039#2,109
20027#2,436
20015#2,928
200012#1,593
199910#1,770
19988#2,110
19977#2,281
19966#2,469

How popular is Alethea in the US?

Rank in 2025
#3,028among girls
Babies in 2025
54about 1 in 30,000 girls
Five-year trend
Risingup 36% in five years
Same name in a class
under 1%chance among 15 girls

In 2025, 54 girls in the US were named Alethea, making it the 3,028th most popular name for girls. Five years earlier, in 2020, it was 2,682nd. Its busiest year was 1973, with 322 girls. It first appears in the records in 1892.

It has been given to fewer girls each year for the last 4 years. 2025 had fewer girls named Alethea than any year since 2019.

Half of all the girls named Alethea in the US since 1880 were born between 1960 and 1993, the years shaded on the chart below.

In 2025, 112 girls in the US were given Alethea or a name that sounds the same. With every name's spellings counted this way, that ranks #1,566, up from #3,028 for this spelling alone.

1892Busiest: 322 in 19732025
Alethea in the US, year by year
YearGirlsRank
202554#3,028
202465#2,661
202374#2,415
202280#2,319
202181#2,266
202062#2,682
201951#3,129
201829#4,660
201750#3,192
201628#4,849
201540#3,766
201436#4,101
201340#3,776
201228#4,955
201133#4,352
201025#5,412
200926#5,377
200828#5,140
200734#4,379
200626#5,232
200527#4,824
200434#4,089
200338#3,651
200226#4,617
200134#3,781
200031#3,978
199923#4,713
199822#4,793
199724#4,367
199621#4,734
199525#4,094
199436#3,163
199326#3,982
199234#3,261
199134#3,201
199041#2,794
198948#2,403
198836#2,862
198754#2,043
198631#2,972
198543#2,316
198442#2,298
198354#1,906
198277#1,531
198172#1,615
198076#1,542
197968#1,645
197888#1,347
197779#1,414
197699#1,160
1975101#1,145
1974201#716
1973322#522
197266#1,456
1971104#1,125
197087#1,263
196975#1,303
196899#1,056
196752#1,559
196642#1,736
196565#1,366
196451#1,593
196367#1,352
196274#1,283
196171#1,318
196084#1,187
195959#1,395
195845#1,587
195746#1,587
195656#1,397
195558#1,319
195447#1,464
195337#1,621
195243#1,468
195139#1,504
195034#1,601
194926#1,881
194826#1,857
194715#2,636
194614#2,596
194512#2,597
194421#1,866
194314#2,446
194220#1,916
194111#2,666
194013#2,296
193910#2,734
193813#2,340
193714#2,196
193611#2,520
193510#2,729
19346#3,800
193319#1,773
19327#3,566
19318#3,224
193010#2,844
19298#3,392
192821#1,836
192711#2,858
192625#1,666
192517#2,190
192426#1,679
192317#2,169
192233#1,403
192123#1,821
192033#1,375
191918#1,989
191815#2,288
191721#1,708
191623#1,581
191522#1,571
191413#1,896
191316#1,465
191210#1,843
19117#1,956
19109#1,634
19097#1,763
19086#1,862
19076#1,820
19060–
19050–
19046#1,658
19036#1,592
19026#1,593
19010–
19000–
18995#1,595
18980–
18975#1,554
18965#1,582
18950–
18940–
18935#1,437
18925#1,450

Nicknames for Alethea

Names like Alethea

Names given in the same years and the same naming tradition, with a similar sound.

Athena Thea Amelia Elena Anastasia Penelope Alexandra Lara Emilia Aurora Olivia Alba

Other spellings of Alethea

Aletheia

Names related to Alethea

Althea Aletta Alethia Aleta Alette

More Greek names

Luca Theodore Sophia George Theo Lucas Sofia Alexander Sebastian Phoebe Margot Luke Chloe Sophie Zoe Iris

Every Greek name

Sources

Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Alethea: name meaning, origin and popularity”, https://www.nameling.co.uk/names/alethea, updated 20 October 2026.