A blog is a website where entries are written in chronological order and commonly displayed in reverse chronological order.

Blog may also refer to:

• Blog 27, a Polish musical group fronted by Tola Szlagowska
• BladeLogic, formerly the NYSE symbol for the software company acquired by BMC Software
• .blog, a proposed generic top-level domain intended for use by blogs

• Vlog, a form of blogging for which the medium is video
• Moblog, a method of publishing to a website or blog from a mobile phone