As proper nouns the difference between matt and danny
is that matt is a short form of the male given name Matthew while Danny is a diminutive of the male given name Daniel.
As an adjective matt
is an alternative spelling of lang=en.
As a noun matt
is an alternative spelling of nodot=yes lang=en an alloy in coppersmithing.
matt
English
Adjective
(head)
Noun
(an alloy in coppersmithing)
----
danny
English
Proper noun
(
en proper noun)
A diminutive of the male given name Daniel.
A diminutive of the female given names Danielle, Daniella and Daniela.