:G4 Underground

{{Use mdy dates|date=March 2025}}

{{Infobox television

| image =

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| genre = Reality/Newsmagazine

| creator =

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| presenter = Morgan Webb

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| country = United States

| language = English

| num_seasons = 1

| num_episodes = 6

| list_episodes =

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| runtime = 30 min.

| network = G4

| first_aired = {{start date|2009|3|29}}

| last_aired = {{End date|2009|12|31}}

| related =

}}

G4 Underground is a cable television newsmagazine programairing on G4 hosted by Morgan Webb.{{Cite news |date=2009-03-04 |title=Clipped From The Fresno Bee |pages=E4 |work=The Fresno Bee |url=https://www.newspapers.com/clip/100775533/the-fresno-bee/ |access-date=2022-04-30}} G4 Underground was described as having a similar format of ABC's 20/20, except it takes a look at many topics that most major news programs don't cover such as Porn 2.0, urban spelunking and Salvia divinorum.