Given name & surname
Si
“a gentleman”
Si is used as a given name and a surname. One Vietnamese interpretation is “a gentleman.”
Meaning & origin
What it means
One Vietnamese interpretation is “a gentleman.”
Where it comes from
An origin associated with this spelling is Vietnamese.
How it developed
In English usage, Si is a diminutive of Simon. In English usage, Si is a diminutive of Simone.
The story
Published U.S. birth records include this spelling as early as 1927. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Si through the years
- Babies since 1880
- 185
- 166 boys · 19 girls
- Most popular year
- 2013
- 15 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
The most recent published U.S. birth count for boys is 6 in 2017. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 15 in 2013. Published U.S. population figures for this spelling include 2,488 as a first name in 2020; 1,767 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.
Si’s family of names
In English usage, Si is a diminutive of Simon. In English usage, Si has a related form in SY. Si has a related form in Simon.
Inner ring: spellings · middle: nicknames and forms · outer: across languages.
Around the world
Si has relatives in 3 languages. Lines run from its Vietnamese roots to each of them.
7 related names in 3 languages. Point at a dot, or tab to the map and use the arrow keys.
Nicknames & forms 5
Diminutives, pet forms, short forms and variants used alongside the name.
Spellings & scripts 6
The same name written differently, including transliterations into other scripts.
Across languages 7
Equivalents and cognates in other languages, plus older forms it grew from.
People named Si
- Li SiChinese politician of the Qin Dynasty279 BC–207 BC
- Zhao LusiChinese actress (born 1998)
- Si GriffisCanadian ice hockey player (1883-1950)
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Si, these share its style, era, origin or sound, from outside its own family.
Do
Do is a surname from Vietnamese. It is used in French.
>99% boys
Liem
“an honest man”
>99% boys
Thai
“man from Thailand”
81% boys · 19% girls
Thang
“one who is victorious”
94% boys · 6% girls
Bian
“a secretive woman”
>99% boys
Sinh
“a flourishing boy”
>99% boys
Nhat
“having a long life”
>99% boys
Sen
“resembling the lotus flower” · “a wood sprite”
>99% boys