| Country | Illicit drugs |
| Ghana | illicit producer of cannabis for the international drug trade; major transit hub for Southwest and Southeast Asian heroin and, to a lesser extent, South American cocaine destined for Europe and the US; widespread crime and money laundering problem, but the lack of a well developed financial infrastructure limits the country's utility as a money laundering center; significant domestic cocaine and cannabis use |
| Gibraltar | void |
| Greece | a gateway to Europe for traffickers smuggling cannabis and heroin from the Middle East and Southwest Asia to the West and precursor chemicals to the East; some South American cocaine transits or is consumed in Greece; money laundering related to drug trafficking and organized crime |
| Greenland | void |
| Grenada | small-scale cannabis cultivation; lesser transshipment point for marijuana and cocaine to US |
| Guam | void |
| Guatemala | major transit country for cocaine and heroin; in 2005, cultivated 100 hectares of opium poppy after reemerging as a potential source of opium in 2004; potential production of less than 1 metric ton of pure heroin; marijuana cultivation for mostly domestic consumption; proximity to Mexico makes Guatemala a major staging area for drugs (particularly for cocaine); money laundering is a serious problem; corruption is a major problem |
| Guernsey | void |
| Guinea | void |
| Guinea-Bissau | increasingly important transit country for South American cocaine enroute to Europe; enabling environment for trafficker operations thanks to pervasive corruption; archipelago-like geography around the capital facilitates drug smuggling |
| Guyana | transshipment point for narcotics from South America - primarily Venezuela - to Europe and the US; producer of cannabis; rising money laundering related to drug trafficking and human smuggling |
| Haiti | Caribbean transshipment point for cocaine en route to the US and Europe; substantial bulk cash smuggling activity; Colombian narcotics traffickers favor Haiti for illicit financial transactions; pervasive corruption; significant consumer of cannabis |
| Heard Island and McDonald Islands | void |