| Lucas Alessandría | |
| Fullname: | Lucas Ramón Alessandría |
| Height: | 1.80NaN0 |
| Birth Date: | 5 April 1978 |
| Years1: | 1997–2003 |
| Years2: | 2003–04 |
| Years3: | 2004–05 |
| Years4: | 2005–06 |
| Years5: | 2006–07 |
| Years6: | 2007–08 |
| Years7: | 2008–09 |
| Years8: | 2010 |
| Years9: | 2010– |
| Clubs7: | Unión de Santa Fe |
| Clubs8: | 9 de Julio de Rafaela |
| Caps1: | 175 |
| Caps2: | 38 |
| Caps3: | 22 |
| Caps4: | 21 |
| Caps5: | 27 |
| Caps6: | 14 |
| Caps7: | 28 |
| Goals1: | 4 |
| Goals2: | 1 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 1 |
| Nationalyears1: | 2000 |
| Nationalteam1: | Argentina U-23 |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
| Pcupdate: | 14 April 2008 |
Lucas Ramón Alessandría (born 5 April 1978) is an Argentine football defender currently playing for Unión de Santa Fe in Argentina. He has played club football for several clubs in Argentina and Spain.
Alessandría started his professional career with Club Atlético Lanús in 1997. He played for the club until 2003 when he spent a season with CD Leganés in Spain. Alessandría returned to Lanús in 2004, during his two spells with the club he amassed nearly 200 appearances, scoring 4 goals.
In 2005 Alessandría joined Quilmes but left after only one season to return to Spanish football where he joined Ponferradina in 2006.
In 2007 Alessandría joined newly promoted Tigre for the Apertura 2007 which was Tigre's first season in the Primera since 1980. The club finished in 2nd place which was the highest league finish in their history.