Main Difference
The main difference between Logo and Emblem is that the Logo is a graphic mark or emblem commonly used by commercial enterprises and Emblem is a pictorial image that epitomizes a concept or that represents a person
Logo
A logo (abbreviation of logotype, from Greek: λόγος, translit. logos, lit. ‘word’ and Greek: τύπος, translit. typos, lit. ‘imprint’) is a graphic mark, emblem, or symbol used to aid and promote public identification and recognition. It may be of an abstract or figurative design or include the text of the name it represents as in a wordmark.
In the days of hot metal typesetting, a logotype was one word cast as a single piece of type (e.g. “The” in ATF Garamond), as opposed to a ligature, which is two or more letters joined, but not forming a word. By extension, the term was also used for a uniquely set and arranged typeface or colophon. At the level of mass communication and in common usage, a company’s logo is today often synonymous with its trademark or brand.
Emblem
An emblem is an abstract or representational pictorial image that represents a concept, like a moral truth, or an allegory, or a person, like a king or saint.
Logo (noun)
A symbol or emblem that acts as a trademark or a means of identification of a company or organization.
“logotype”
“brandmark|submark|wordmark”
Logo (noun)
A single graphic which contains one or more separate elements.
Logo (noun)
An ensign, a badge of office, rank, or power.
Emblem (noun)
A representative symbol, such as a trademark or logo.
“The trucks were emblazoned with the emblem of the Red Cross and were not supposed to be targeted.”
Emblem (noun)
Something which represents a larger whole.
“The rampant poverty in the ethnic slums was just an emblem of the group’s disenfranchisement by the society as a whole.”
Emblem (noun)
Inlay; inlaid or mosaic work; something ornamental inserted in a surface.
Emblem (noun)
A picture accompanied with a motto, a set of verses, etc. intended as a moral lesson or meditation.
Emblem (verb)
To symbolize.
Logo (noun)
a symbol or other small design adopted by an organization to identify its products, uniform, vehicles, etc.
“the Olympic logo was emblazoned across the tracksuits”