Dbar, D-Bar or DBAR could refer to:

• Bar (unit), a unit of pressure
  • Decibar, one tenth of a bar
• Sergei Dbar (1946 – 2002), an Abkhazian military commander
• Dorotheos Dbar (born 1972), an Abkhazian religious figure
• Complex differential form, in mathematics
• DBAR problem, also in mathematics
• D with stroke (Đ/đ), a variant of the letter D/d