Cannabis in Minnesota relates to the legal and cultural events surrounding the use of cannabis. Recreational usage is not legal in Minnesota.
In 1976, during a short-lived wave of decriminalization in the country, Minnesota reduced the penalty for possession for 42.5 grams or less to a petty misdemeanor.
The Minnesota Medical Marijuana Act creates a patient registry under the Department of Health relating to the therapeutic use of medical cannabis. It authorizes the use of medical cannabis in limited forms for certain qualifying medical conditions and regulates the distribution and manufacture of medical cannabis. It also creates a task force to conduct an impact assessment on medical cannabis therapeutic research and provides for certain criminal and civil protections for parties involved in the registry program. This passed the House 89–40 and the Senate 46–16.
In May 2014 Governor Mark Dayton signed into law a bill legalizing marijuana for the treatment of nine severe medical conditions, including cancer, severe epilepsy, HIV/AIDS, glaucoma, Tourette's syndrome, ALS and Crohn's Disease.
Registration for the program began on June 1, 2015, with actual distribution of medical marijuana beginning July 1, 2015. It is considered to be the most restrictive medical marijuana bill in the country, due to the limited number of medical conditions that qualify, and the forms of cannabis that are legal. To qualify for the program, patients must be diagnosed with one of the following conditions: Cancer (with pain, nausea, vomiting, and/or wasting), Glaucoma, HIV/AIDS, Tourettes, ALS (Lou Gehrig's Disease), a seizure disorder, Multiple Sclerosis, Crohn's Disease, or a painful terminal illness with less than a year to live. For those individuals who meet the medical criteria, cannabis will only be legally available in liquid, pill or vaporized delivery method that does not require the use of dried leaves or plant form. In 2016, "intractable pain" was added to the list of qualifying conditions, with PTSD added August 1, 2017. Chronic pain and age-related macular degeneration were also added to the list of qualifying conditions on December 1, 2019; the changes will go into effect August 2020. 
Recreational Use Cannabis
On November 6th, 2018, Tim Walz was elected to the Governorship. Walz argued that legalizing cannabis could bring in a new source of tax revenue if regulated properly, and it could reduce the number of people locked up for drug offenses: “I just think the time is here and we’re seeing it across the country. Minnesota has always been able to implement these things right.”
On January 28th, 2019 Senator Melisa Franzen and Representative Mike Feiberg and Senator Scott Jensen introduced a bill that would allow people over 21 to possess, grow, and purchase limited quantities of cannabis. In a statement from Mike Feiberg “Our focus in drafting legislation to end the prohibition of cannabis in Minnesota is to ensure we have a responsible regulatory model for consumer access that still provides for public health, safety and welfare,” he continued. “The time has come for us to have this debate.”
On March 8th, 2019, The Senate Republicans in Minnesota, voted down a measure to legalize the recreational use of cannabis. Republicans also decided not to create a task-force to study the issue further. Sen. Melisa Franzen, D-Edina, who sponsored the measure said “We don’t have a bill to move, so I think the debate is shut down in the Senate," noting that Governor Tim Walz could convene a task force of his own but chose to not do so. Several proposals remain under consideration in the House, including the creation of a task force, similar to what Franzen proposed, and a constitutional amendment to let voters decide the fate of legalizing, taxing and regulating the recreational use of cannabis. 
- Robert J. MacCoun; Peter Reuter (27 August 2001). Drug War Heresies: Learning from Other Vices, Times, and Places. Cambridge University Press. pp. 46–. ISBN 978-0-521-79997-3.
- Condon, Patrick (2014-05-29). "Dayton signs bill legalizing medical marijuana in Minnesota". StarTribune.com. Retrieved 2017-02-10.
- "Medical marijuana on verge of Minn. law; it will be strictest in U.S." Star Tribune. Retrieved November 9, 2015.
- "Medical Cannabis". state.mn.us. Archived from the original on October 31, 2015. Retrieved November 9, 2015.
- "General Information about the Minnesota Medical Cannabis Program". state.mn.us. Archived from the original on November 7, 2015. Retrieved November 9, 2015.
- "Minnesota medical cannabis program to include PTSD sufferers". Twin Cities. 2017-07-05. Retrieved 2018-04-22.
- "Medical Cannabis Qualifying Conditions - Minnesota Dept. of Health". www.health.state.mn.us. Archived from the original on 2018-04-23. Retrieved 2018-04-22.
- "Minnesota OKs medical cannabis for chronic pain, eye disease". Retrieved 2019-12-03.
- "Legalize pot? Gov.-elect Tim Walz says Minnesota should". Twin Cities. 2018-11-25. Retrieved 2019-04-13.
- Reed, Ryan; Reed, Ryan (2019-01-28). "Minnesota Introduces Bill for Marijuana Legalization". Rolling Stone. Retrieved 2019-04-13.
- "Minnesota Republican senators reject legalizing marijuana". Star Tribune. Retrieved 2019-04-13.
- Raiche, Ryan (2019-05-17). "High but not hired: Companies preparing for legal marijuana". KSTP. Retrieved 2019-05-20.