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U+0178 · Latin Extended-A

Latin Capital Letter Y with Diaeresis Ÿ

Ÿ is the capital form of ÿ. It is one of the rarest capitals in Latin script, needed mainly for French names written in all capitals, such as L’HAŸ-LES-ROSES, or when a word containing ÿ begins a title. Because French style keeps accents on capital letters, correctly set uppercase text requires Ÿ rather than a plain Y.

WindowsAlt 0159
MacOption + U, then Shift + Y
UnicodeU+0178
HTMLŸ
ŸU+0178

Character codes

Unicode code pointU+0178
Decimal376
HTML named entityŸ
HTML (hex)Ÿ
HTML (decimal)Ÿ
CSS\0178
JavaScript\u0178
Python\u0178
UTF-8 bytesC5 B8
UTF-160178
URL-encoded%C5%B8

Character details

Official nameLATIN CAPITAL LETTER Y WITH DIAERESIS
Unicode blockLatin Extended-A
General categoryUppercase Letter (Lu)
SymbolHero categoryAccented Letters
DecompositionU+0059 U+0308
Lowercaseÿ Latin Small Letter Y with Diaeresis
EmojiNo

How to type Ÿ

Windows

  • Hold Alt and type 0159 on the numeric keypad (Num Lock on), then release Alt. Alt 0159 uses the Windows-1252 code page.
  • In Microsoft Word or Outlook: type 0178 then press Alt + X.
  • Open Character Map (search “Character Map” in Start), tick “Advanced view”, search for “latin capital letter y with diaeresis”, then Select and Copy.

Mac

  • Press Option + U, then Shift + Y (US English keyboard layout).
  • Press Control + Command + Space to open the Character Viewer, search “latin capital letter y with diaeresis”, and double-click the result.
  • With the Unicode Hex Input keyboard enabled (System Settings → Keyboard → Input Sources), hold Option and type 0178.

iPhone & Android

  • On iPhone and most Android keyboards, press and hold the Y key and slide to Ÿ. On a Mac, holding the key down works the same way.
  • Tap Copy at the top of this page, then long-press where you want it and choose Paste.

Docs & web

  • Google Docs: Insert → Special characters, then search “latin capital letter y with diaeresis” or enter U+0178.
  • HTML: Ÿ or Ÿ
  • Excel / Google Sheets: =UNICHAR(376)

Examples

  • L’HAŸ-LES-ROSES
  • AŸ-CHAMPAGNE
  • PIERRE LOUŸS

Good to know

Don’t mix it up: It is easily confused with Ý (U+00DD), the capital Y with an acute accent used in Icelandic and Czech.

Tip: Ÿ was left out of Latin-1 (ISO 8859-1) but is present in Windows-1252, which is why Alt + 0159 works on Windows.

Display: the character itself is always the same code point, but its shape comes from the font on the device showing it. If you see an empty box, the font lacks this glyph—the text is still correct.

Questions

What is the Unicode for Ÿ?

It is U+0178 (LATIN CAPITAL LETTER Y WITH DIAERESIS), decimal 376.

Is there a Windows Alt code for it?

Yes: Alt 0159 on the numeric keypad.

How do I type it on a Mac?

Option + U, then Shift + Y on a US English keyboard, or use the Character Viewer (Control + Command + Space).

What is the HTML code?

Use the named entity Ÿ or the numeric reference Ÿ.