Mads is a male given name, a Danish, Norwegian and Swedish Scandinavian form of the English name Matthew. Notable people with the name include:
- Mads Clausen (1905–1966), Danish industrialist and founder of Danfoss
- Mads Langaard (1815–1891), Norwegian brewery owner and industrialist
- Mads Johansen Lange (1807–1856), Danish trader, entrepreneur and peacemaker on Bali
- Mads Albæk (born 1990), Danish footballer
- Mads Andersen (rower) (born 1978), Danish rower
- Mads Burnell (born 1994), Danish mixed martial artist
- Mads Hermansen (born 2000), Danish footballer
- Mads Juel Andersen (born 1997), Danish footballer
- Mads Glæsner (born 1988), Danish swimmer
- Mads Jørgensen (born 1979), Danish retired footballer
- Mads Jørgensen (footballer, born 1998), Danish footballer
- Mads Junker (born 1981), Danish pundit and retired footballer
- Mads Kaggestad (born 1977), Norwegian retired road racing cyclist
- Mads Laudrup (born 1989), Danish professional football player who currently plays for HB Køge
- Mads Østberg (born 1987), Norwegian rally car driver
- Mads Pedersen (badminton) (born 1990), Danish badminton player
- Mads Pedersen (cyclist) (born 1995), Danish road racing cyclist, 2019 Road Race World Champion
- Mads Pedersen (footballer, born 1993), Danish footballer
- Mads Rasmussen (born 1981), Danish rower
- Mads Timm (born 1984), Danish footballer
- Mads Valentin (born 1996), Danish footballer
- Mads Nielsen, a character from a German Netflix series Dark