There are a list of the most popular global conferences about Microsoft Dynamics solutions (NAV and Dynamics 365), sorted according to the time of schedule. There are also some conference not dedicated to Dynamics solutions, but where Dynamics are represented on a high level.

Directions NA (September 17-20, 2017 – Orlando, FL, US)

Microsoft Envision (September 25-27, 2017 – Orlando, FL, US)

Microsoft Ignite (September 25-29, 2017 – Orlando, FL, US)

Directions EMEA (October 4-6, 2017 – Madrid, Spain)

NAVUG Summit (October 10-13, 2017 – Nashville, TN, US)

eXtreme365 US (November 6-9, 2017 – Long Beach, CA, US)

NAV TechDays (November 16-17, 2017 – Antwerp, Belgium)

Dynamics 365 Tech Conference (March, 2018, – TBD)

eXtreme365 (March, 2018 – TBD)

Directions Asia (March 2018, – TBD)

CRM Evolution (Aprile 9-11, 2018 – Washington DC, US)

Summit (NAVUG, AXUG, CRMUG, PBIUG) EMEA Congress (April 24-26, 2018 – Dublin, Ireland)

conneXion – LS Retail conference (April, 2018 – TBD)

NAVUG Focus (May 2018, – TBD)

Microsoft Build (May, 2018 – Seattle, WA, US)

Microsoft Inspire (ex WPC) (July 15-19, 2018 – Las Vegas, NV, US)

Besides these sixteen conferences and events, there are a lot of local and regional events, but I listed only regular global annual conferences.