How many popes have been named Stephen?

Answer 1

Pope Saint Stephen I served as Bishop of Rome from 12 May 254 to 2 August 257. So, only one, I think!

That was the first, but there have been at least 9:

• Pope Stephen I (died 257), Bishop of Rome from 254-257
• Pope-elect Stephen (died 752), elected Pope but died before being ordained
• Pope Stephen II (died 757), pope from 752-757
• Pope Stephen III (720-772), pope from 768-772
• Pope Stephen IV (died 817), pope from 816-817
• Pope Stephen V (died 891), pope from 885-891
• Pope Stephen VI (died 897), pope from 896-897
• Pope Stephen VII (died 931), pope from 929-931
• Pope Stephen VIII (died 942), German, pope from 939-942
• Pope Stephen IX (c. 1020-1058), pope from 1057-1058