The term two dots or double dot may refer to:

• Colon (punctuation), the punctuation mark (:)
• Two dots (diacritic), a mark used with a base letter to indicate that its pronunciation is somehow modified (◌̈ ◌̤)
  • Diaeresis (diacritic), the diacritic mark used to denote the separation of two consecutive vowels
  • Umlaut (diacritic), the diacritic mark to indicate the vowel-fronting sound change
    • Metal umlaut, gratuitous diacritic used in the names of some rock bands
• Ethiopic wordspace (፡), a word divider in Geʽez script
• In old Turkic script, a colon-like symbol (U+205A ⁚ TWO DOT PUNCTUATION) is sometimes used as a word separator
• Question mark § History, two vertical dots used to indicate a question in fifth century Syriac manuscripts
• Two dot punctuation mark, used as an obelism

• Two Dots (game), a puzzle game for Android and IOS
• Leader (typography) Row of dots used in tables of contents (usually more than two)
• Ellipsis (computer programming), a notation (two or three dots) is used to denote programming ranges, an unspecified number of arguments
• A parent directory in a relative path
• A second derivative in Newton's notation

• Semi-colon, the punctuation mark (;)
• Dot (disambiguation)
• Three dots (disambiguation)