Donatas Slanina (born 23 April 1977) is a Lithuanian professional basketball player who plays as a shooting guard in his professional career. He also shortly worked as an assistant coach. After starting his professional career in à  iauliai, he was best known for playing in Lithuanian champion à ½algiris and Pallacanestro Reggiana. He is one of the best three point shooter in Europe. Slanina also was member of Lithuania national team, winning gold medal in Eurobasket 2003.
In July 2015, Slanina was named the assistant to head coach Massimiliano Menetti, at Pallacanestro Reggiana, the club where he finished his playing career. After the 2016-17 season, Slanina contract was not renewed by Pallacanestro Reggiana, but the Lithuanian and his family continue to live in Reggio Emilia.
|- | style="text-align:left;"| 2000âÂÂ01 | style="text-align:left;"| à ½algiris | 12 || 9 || 28.2 || .580 || .552 || .870 || 3.3 || 1.0 || .7 || .3 || 14.5 || 13.7 |- | style="text-align:left;"| 2001âÂÂ02 | style="text-align:left;"| à ½algiris | 14 || 6 || 30.5 || .456 || .323 || .882 || 2.7 || 1.7 || 1.0 || .0 || 16.6 || 11.1 |- | style="text-align:left;"| 2006âÂÂ07 | style="text-align:left;"| Asseco Gdynia | 20 || 15 || 26.0 || .547 || .337 || .896 || 1.8 || 1.5 || .8 || .1 || 10.9 || 9.2 |- | style="text-align:left;"| 2007âÂÂ08 | style="text-align:left;"| Asseco Gdynia | 14 || 12 || 28.1 || .491 || .424 || .818 || 1.9 || 1.9 || .8 || .1 || 11.1 || 8.5