Theodore Lyman

Theodore Lyman may refer to:

• Theodore B. Lyman (1815–1893), American bishop
• Theodore Lyman I (1753–1839), American merchant and shipbuilder
• Theodore Lyman II (1792–1849), American philanthropist, politician, and author
• Theodore Lyman III (1833–1897), American natural scientist, military staff officer, and politician
• Theodore Lyman IV (1874–1954), American physicist