| Adam Zajíček | |
| Nationality: | Czech |
| Birth Date: | 25 February 1993 |
| Birth Place: | Prague |
| Height: | 2.01abbr=onNaNabbr=on |
| Weight: | 92kg (203lb) |
| Spike: | 345abbr=onNaNabbr=on |
| Block: | 331abbr=onNaNabbr=on |
| Position: | Middle blocker |
| Currentclub: | VK Kladno |
| Currentnumber: | 5 |
| Years: | 2013–2017 2017– |
| Teams: | VK Dukla Liberec VK Kladno |
| Nationalyears: | 2013– |
| Nationalteam: | Czech Republic |
Adam Zajíček (born 25 February 1993) is a Czech volleyball player for VK Kladno and the Czech national team.
He participated at the 2017 Men's European Volleyball Championship.
Czech Cup:
Czech Championship: