Thekla may refer to:
- The Thekla (Old Profanity Showboat), originally a theatre based aboard a sea ship, now a music venue in Bristol, England
- Thekla, suburb in Leipzig, site of a subcamp of Buchenwald
- Thekla Lark, species of Lark
- Thecla, one of the main subjects of the Acts of Paul and Thecla, a non-canon book of the New Testament in the Bible