Robert Weir may refer to:

• Robert Weir (politician) (1882–1939), Canadian politician
• Robert Walter Weir (1803–1889), American artist
• Robert Weir (athlete) (born 1961), English discus thrower
• Robert Stanley Weir (1856–1926), Canadian judge and poet
• Bob Weir (born 1947), American singer, songwriter, and guitarist with the Grateful Dead
• Robbie Weir (born 1988), Northern Irish footballer

• Robert E. Wier (born 1967), American judge

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