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
This disambiguation page lists articles about people with the same name.
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