Educational institutions established in the 6th-century, or older institutions which were refounded in the 6th-century. The 6th-century is year 501 through year 600.

Articles should be categorised by year for 1800 and later, by decade for 1500 to 1799, by century for before 1500, and placed in Category:Educational institutions with year of establishment missing for unknown dates.

Century:	2nd BC | 1st BC | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th | 12th | 13th | 14th | 15th | 16th | 17th | 18th | 19th | 20th | 21st