Theobald, or the French form Thibau(l)t, derived from the Germanic elements þeud "people" and bald "bold", may refer to:
- Tedbald, Archbishop of Canterbury
- Saint Theobald (Theobald of Marly), an abbot
- Theobald of Provins (Saint Theobald)
- Lewis Theobald, an 18th-century editor of Shakespeare
- Theobald I, Duke of Lorraine
- Theobald II, Duke of Lorraine
- Theobald I of Blois
- Theobald II of Blois
- Theobald III of Blois, also known as Theobald I of Champagne
- Theobald II of Champagne, also known as Theobald IV of Blois
- Theobald III of Champagne
- Theobald IV of Champagne, also known as Theobald I of Navarre
- Theobald V of Champagne, also known as Theobald II of Navarre
- Theobald of Bec, Archbishop of Canterbury 1138-1161
- Theobald, Bishop of Liège (died 1312)
- Theobald Mathew, an Irish temperance reformer
- Theobald Mathew, an English Officer of Arms
- Theobald Wolfe Tone, the leader of the 1798 United Irishmen's rising
Surname
- David Theobald
- Densill Theobald
- Karl Theobald
- Lewis Theobald
- Nichola Theobald
- Robert Alfred Theobald
- Robert Theobald (1929 - 1999) Economist, futurist
