| Janus Daði Smárason | |
| Nationality: | Icelandic |
| Birth Date: | 1 January 1995 |
| Birth Place: | Selfoss, Iceland |
| Height: | 1.84 m |
| Position: | Centre back |
| Currentclub: | OTP Bank-Pick Szeged |
| Clubnumber: | 13 |
| Youthyears1: | 2002–2012 |
| Youthclubs1: | Selfoss |
| Youthyears2: | 2012–2014 |
| Youthclubs2: | Aarhus Håndbold |
| Years1: | 2011–2012 |
| Clubs1: | Selfoss |
| Years2: | 2014–2017 |
| Clubs2: | Haukar |
| Years3: | 2017–2020 |
| Clubs3: | Aalborg Håndbold |
| Years4: | 2020–2022 |
| Clubs4: | Frisch Auf Göppingen |
| Years5: | 2022–2023 |
| Clubs5: | Kolstad Håndball |
| Years6: | 2023–2024 |
| Clubs6: | SC Magdeburg |
| Years7: | 2024– |
| Clubs7: | OTP Bank-Pick Szeged |
| Nationalyears1: | 2017– |
| Nationalteam1: | Iceland |
| Nationalcaps1: | 72 |
| Nationalgoals1: | 114 |
| Ntupdate: | 8. January 2024 |
Janus Daði Smárason (born 1 January 1995) is an Icelandic handball player for OTP Bank-Pick Szeged and the Icelandic national handball team.[1]
He participated at the 2017 World Men's Handball Championship.[2]