Katherine Richardson (or similar) may refer to:
- Cathy Richardson (born 1969), American singer-songwriter
- Katharine Richardson (1854–1927), British mountain climber
- Katherine Richardson (swimmer), Canadian swimmer
- Katherine Gilmore Richardson, member of the Philadelphia City Council.
- Katherine Richardson Christensen (born 1954), American-Danish oceanographer
- Kathy Kreag Richardson (born 1956), American Republican politician
- Katie Richardson (born 1988), Australian beauty pageant winner