There are 96 Si- names for baby boys. Displayed on this page are Si- names 1 to 20. Sidney was the most popular among these names in 2008 with a rank of #813 and a usage of 0.0124%. The unusual Si- names are Si (English), Siarl (Welsh), Sid (English), Sidharth (Indian), Sidhartha (Indian), Sidon (English), Sidonio (Spanish), Sidonius (German), Sieffre (Welsh), Siegbert (German), Siegfried (English and German), Sieghard (German), Sieghart (German), Siegmar (German), Siegmund (German), Siegward (German), Siek (Czech), Siemen (Dutch and German), and Siffre (French). Si- names are somewhat popular baby names for boys. At the modest height of their usage in 1912, 0.330% of baby boys were given Si- names. There were 7 Si- names ranked within the top 1000 baby names then. Si- names have since experienced a decline in frequency, and in recent years they are of only occasional use. In 2008, 4 Si- names listed among the top 1000, with a combined usage of 0.133%, having regained their popularity somewhat in the recent decade. Within all Si- names, the English, French, and German Simon was the most commonly used, with a ranking of #261 and a usage of 0.0619%.
| Si | he who hears, God has ... used predominantly in the English language ... Its origin is Old English and Hebrew ... |
| Siarl | man, free man ... of Germanic origin and it is predominantly ... variation of Charles ... |
Sid  | wide island, wide meadow ... has its origins in the Old English language ... form of Sidney ... |
| Sidharth | one who has achieved ... origin is Sanskrit, and its use, Indian ... variant of Sidhartha ... |
| Sidhartha | one who has achieved ... used mostly in Indian and it is of ... not widely used as a baby name for ... |
Sidney  813 | wide island, wide meadow ... used chiefly in the English language ... noted bearer of the family name was ... |
| Sidon | wide island, wide meadow ... used chiefly in the English language and ... variant of Sidney ... |
| Sidonio | wide island, wide meadow ... of Old English origin and it is used ... variation of Sidney ... |
| Sidonius | man from Sidon ... of Latin origin and it is used mainly ... variant form of Sidony ... |
| Sieffre | peaceful ruler ... used mostly in Welsh and it is of various ... form of Jeffrey ... |
| Siegbert | victory; bright, famous ... used predominantly in German and its ... not popular as a baby name for boys ... |
| Siegfried | victory; peace, protection, ... of Germanic origin ... used mainly in English and German ... |
| Sieghard | victory; brave, hardy ... used mostly in the German language ... not regularly used as a baby boy ... |
| Sieghart | victory; brave, hardy ... origin is Germanic, and its use, German ... variant form of Sieghard ... |
| Siegmar | victory; great, famous ... used chiefly in German and it is ... name was borne by Segimerus (17BC-21AD), also ... |
| Siegmund | victorious defender ... used chiefly in the German language ... variant spelling of Sigmund ... |
| Siegward | victory; guardian, defender ... of Germanic origin and it is ... an unusual baby name for boys ... |
| Siek | he who hears, God has ... mainly used in the Czech language and its ... form of Simon ... |
| Siemen | he who hears, God has ... of Hebrew origin ... used mainly in Dutch and German ... variant form of Simon ... |
| Siffre | victory; peace, protection, ... language of origin is Germanic and it is ... variation of Siegfried ... |
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