Coulon is a surname. Notable people with the surname include:

• George David Coulon (1822–1904), American painter
• Georges Coulon (1838–1912), Former Vice President of the French Council of State
• Jean-François Coulon (1764-1836), French ballet dancer and teacher
• Jean-Michel Coulon (1920–2014), French painter
• Jocelyn Coulon (born 1957), Quebec author, researcher and former federal election candidate
• Johnny Coulon (1889–1973), American boxer

• Katheryn Parr
• Katheryn Parre
• Katheryn Prescott
• Katheryn Salisbury
• Katheryn Salusbury
• Katheryn Seymour
• Katheryn Shields
• Katheryn Thrale
• Katheryn Tudor
• Katheryn Warbeck
• Katheryn Wynn
• Kathe Schmidt Kollwitz
• Kathe Schneider
• Kathe Sohnemann
• Katheynix
• Kathgarh
• Kathia
• Kathiani Constituency
• Kathi Appelt
• Kathiatali
• Kathi Austin
• Kathiawadi cattle
• Kathiawadi Memon
• Kathiawadi Memons
• Kathi Bennett