U+0401 "Ё" Cyrillic Capital Letter Io Unicode Character
Unicode Version 18.0
Source: Browser Default
U+0401 "Ё" Cyrillic Capital Letter Io is a distinct letter in the Cyrillic script, formed by placing a diaeresis or two dots over the letter Е. It represents the sound /jo/ in Russian and other Slavic languages, much like the English “yo” in “yonder.” Although often considered a separate letter in the alphabet, it is sometimes treated as a variant of Е in certain contexts, and its mandatory use in writing can vary by language and style. This character is encoded with a single code point rather than as a combination of Е and the diaeresis combining mark, ensuring it functions as an independent typographical unit.
General Properties
Code Point
U+0401
Name
Cyrillic Capital Letter Io
Decomposition Mapping
Encodings
HTML Decimal Encoding
Ё
HTML Hex Encoding
Ё
UTF-8 Encoding
0xD0 0x81
UTF-16 Encoding
0x0401
UTF-32 Encoding
0x00000401
C/C++/Java Escape
\u0401
Unicode Properties
Numeric Value
NaN
Simple Lowercase Code Point
Lowercase Code Point
Simple Case Folding
Case Folding
NFKC Casefold
NFKC Simple Casefold
Script Extensions
Cyrillic