Robert Forsyth

• Robert Forsyth (bishop), Australian Anglican bishop
• Robert Forsyth (writer), Scottish writer
• Robert Campbell Forsyth, Scottish footballer
• Robert Forsythe (footballer), Northern Irish footballer
• Robert E. Forsythe, American economist
• Robert Forsythe (politician), New Hampshire state representative
• Robert Forsyth (law enforcement officer), the first United States federal law enforcement officer to be killed in the line-of-duty