Catherine Young (or similar) may refer to:
- Catharine Young (politician) (born 1960), American legislator
- Catharine Young (journalist), (1826–1908), British journalist
- Katherine Young (1901–2005), Chinese-American centenarian
- Catherine Young (1918–1967), stage name of German-born film and television actress Kaaren Verne
- Katherine K. Young (born 1944), Canadian historian and academic
- Kathy Young (born 1945), American pop singer
- Kathy McEdwards (née Young; born 1957), Canadian curler
- Cathy Young (born 1963), Russian-born American journalist and author
- Cathy Young (vocalist) (born 1951), Canadian folk singer and songwriter
- Kathryn Young, American rower, see 1990 World Rowing Championships
- Katie Young, American beauty pageant contestant, Miss Texas USA 1992
- Kate Young, Australian breaststroke swimmer, see 2002 Oceania Swimming Championships
- Kate Young (politician), Canadian politician
- Kate Young (musician), Scottish fiddle player, singer and composer, performs as Kate in the Kettle
- Katy Young Yaroslavsky, American politician and member of the Los Angeles City Council