How many teachers are there in total the world?

There's no definitive answer to how many teachers there are in the world. Data collection on this is inconsistent across countries and many regions lack reliable statistics. Estimates vary widely depending on the source and definitions used (e.g., what constitutes a "teacher," including or excluding preschool, higher education, etc.). You'll find figures ranging from tens of millions to over 100 million, but none can be considered completely accurate.