Rebecca Smith may refer to:

• Kate Harrington (poet) (Rebecca Harrington Smith, 1831–1917), American teacher and poet
• Carlene Carter (Rebecca Carlene Smith, born 1955), American country singer and songwriter

• Rebecca Smith (footballer) (born 1981), New Zealand soccer player
• Rebecca Smith (swimmer), Canadian swimmer
• Becky Wiber (born 1959), Canadian swimmer born Rebecca Smith

• Rebecca Smith (infanticide) (1807–1849), last British woman executed for infanticide
• Rebecca Smith (journalist) (fl. 1970s–2020s), American reporter
• Rebecca Smith (politician), British MP
• Rebecca Beach Smith (born 1949), U.S. federal judge
• Rebecca Smith (c. 1848–?), one of the Ascott Martyrs, English women imprisoned for 7-10 days in 1873 for their role in founding a branch of the National Union of Agricultural Workers