Daniel Jackson may refer to:

• Daniel Jackson (basketball) (born 1988), Australian basketball player
• Daniel Jackson (computer scientist) (born 1963), professor of computer science
• Daniel Jackson (footballer) (born 1986), Australian rules footballer
• Daniel Jackson (playwright) (born 1980), Scottish playwright, also known as D.C. Jackson
• Daniel Jackson (soccer) (born 1989), American soccer player
• Daniel Jackson (Stargate), a fictional character in the Stargate science fiction franchise
• Daniel Jackson (American football), American football player
• Daniel Jackson, a fictional sniper from Saving Private Ryan

• Dan Jackson (born 1993), Costa Rican-American soccer player
• Danny Jackson (born 1962), American baseball pitcher