A capital Latin letter D with a stroke through its vertical bar (Đ) is the uppercase form of several different letters:

• D with stroke (Đ, đ), used in Vietnamese, some South Slavic and Sami languages
• Eth (Ð, ð), used in Icelandic, Faroese, and Old English
• African D (Ɖ, ɖ), representing a voiced retroflex plosive sound
• D–E ligature, which appears in old Spanish inscriptions; a similar symbol representing the word de, 'of'. Not represented in Unicode.

These are all different letters which just happen to look almost the same, much like the Cyrillic abbreviation for the Union of Soviet Socialist Republics (СССР in Russian which should be transcripted as SSSR in English) happens to resemble the Latin letters CCCP.