Martha Smith (disambiguation)

Martha Smith (born 1952) is an American model. Martha Smith may also refer to:

• Martha K. Smith (fl. 1960s–2010s), American mathematician
• Martha Nell Smith (fl. 1990s–2010s), professor of English
• Martha Pearson Smith (1836-?), American poet, musician, temperance activist

• Yeardley Smith (full name Martha Maria Yeardley Smith), American actress, writer and artist