| Country | Illicit drugs |
| Lithuania | transshipment and destination point for cannabis, cocaine, ecstasy, and opiates from Southwest Asia, Latin America, Western Europe, and neighboring Baltic countries; growing production of high-quality amphetamines, but limited production of cannabis, methamphetamines; susceptible to money laundering despite changes to banking legislation |
| Luxembourg | void |
| Macau | Transshipment point for drugs going into mainland China; consumer of opiates and amphetamines |
| Macedonia | major transshipment point for Southwest Asian heroin and hashish; minor transit point for South American cocaine destined for Europe; although not a financial center and most criminal activity is thought to be domestic, money laundering is a problem due to a mostly cash-based economy and weak enforcement |
| Madagascar | illicit producer of cannabis (cultivated and wild varieties) used mostly for domestic consumption; transshipment point for heroin |
| Malawi | void |
| Malaysia | drug trafficking prosecuted vigorously and carries severe penalties; heroin still primary drug of abuse, but synthetic drug demand remains strong; continued ecstasy and methamphetamine producer for domestic users and, to a lesser extent, the regional drug market |
| Maldives | void |
| Mali | void |
| Malta | minor transshipment point for hashish from North Africa to Western Europe |
| Marshall Islands | void |
| Mauritania | void |
| Mauritius | consumer and transshipment point for heroin from South Asia; small amounts of cannabis produced and consumed locally; significant offshore financial industry creates potential for money laundering, but corruption levels are relatively low and the government appears generally to be committed to regulating its banking industry |
| Mayotte | void |
| Mexico | major drug-producing nation; cultivation of opium poppy in 2005 amounted to 3,300 hectares yielding a potential production of 8 metric tons of pure heroin, or 17 metric tons of "black tar" heroin, the dominant form of Mexican heroin in the western United States; marijuana cultivation decreased 3% to 5,600 hectares in 2005 - just two years after a decade-high cultivation peak in 2003 - and yielded a potential production of 10,100 metric tons; government conducts the largest independent illicit-crop eradication program in the world; continues as the primary transshipment country for US-bound cocaine from South America, with an estimated 90% of annual cocaine movements towards the US stopping in Mexico; major drug syndicates control majority of drug trafficking throughout the country; producer and distributor of ecstasy; significant money-laundering center; major supplier of heroin and largest foreign supplier of marijuana and methamphetamine to the US market |
| Micronesia, Federated States of | major consumer of cannabis |
| Moldova | limited cultivation of opium poppy and cannabis, mostly for CIS consumption; transshipment point for illicit drugs from Southwest Asia via Central Asia to Russia, Western Europe, and possibly the US; widespread crime and underground economic activity |
| Monaco | void |
| Mongolia | void |
| Montenegro | void |
| Montserrat | transshipment point for South American narcotics destined for the US and Europe |
| Morocco | one of the world's largest producers of illicit hashish; shipments of hashish mostly directed to Western Europe; transit point for cocaine from South America destined for Western Europe; significant consumer of cannabis |
| Mozambique | Southern African transit point for South Asian hashish and heroin, and South American cocaine probably destined for the European and South African markets; producer of cannabis (for local consumption) and methaqualone (for export to South Africa); corruption and poor regulatory capability makes the banking system vulnerable to money laundering, but the lack of a well-developed financial infrastructure limits the country's utility as a money-laundering center |
| Namibia | void |
| Nauru | void |