Charles Sinclair or St Clair is the name of:

• Charles Sinclair (screenwriter) of The Green Slime and Batman television episodes
• Charles Sinclair, character in Iron Eagle III
• Charles St Clair, 17th Lord Sinclair (1914–2004), Scottish soldier, courtier and representative peer
• Charles Sinclair (businessman) (born 1948), British businessman
• Charles Colin Sinclair (boxer) (born 1890), Australian Olympic boxer

• Charles E. Sinclair (1828-1887), Virginia judge

• Jordan's Meats
• Jordan sneakers
• Jordan Sonnenblick
• Jordan Sparks
• Jordan Spiz'ike
• Jordan's Point
• Jordan's Point Plantation
• Jordan Springs, VA
• Jordan Springs, Virginia
• Jordan Spuckler
• Jordan S. Rubin
• Jordan's rule
• Jordan Staal
• Jordan Star (newspaper)
• Jordan Stewart (footballer, born 1982)
• Jordan's theorem
• Jordan's theorem (multiply transitive groups)
• Jordanstown
• Jordanstown Poly
• Jordanstown Polytechnic
• Jordanstown railway station
• Jordanstown Schools
• Jordan Sullivan
• Jordan Sullivan (Scrubs)
• Jordan Super Cup