Santiago Grondona
Flanker · Newcastle Falcons
- Nationality
- Argentina
- Born
- 1998-07-25
- Birthplace
- Argentina
- Height
- 6 ft 6 in (1.98 m)
- Weight
- 232 lb (105 kg; 16 st 8 lb)
Santiago Grondona (born 25 July 1998) is an Argentine rugby union player who plays for the Newcastle Falcons. On 21 November 2019, he was named in the Jaguares squad for the 2020 Super Rugby season.