Which Roman god is often depicted with a lyre?

The Roman god often depicted with a lyre is Apollo. In mythology, Apollo is the god of music, arts, knowledge, and prophecy, making the lyre a fitting instrument associated with him. The lyre represents his role as a patron of music and the arts, reflecting his embodiment of harmony and artistic inspiration.

Apollo's connection to music is celebrated in numerous myths, where he is shown playing the lyre to charm both gods and mortals. His skill with the instrument is well-documented in stories, such as the competition with Marsyas, where he showcased his superior musical abilities.

Jupiter, although a prominent deity, is primarily associated with thunder and the sky rather than music. Mercury, the messenger god, is linked with commerce and cunning rather than artistic expression. Neptune is known as the god of the sea and is typically depicted with a trident; he does not have a strong connection to music like Apollo. Thus, the depiction of Apollo with a lyre is a clear and fitting representation of his attributes in Roman mythology.