|Full name||Constantinos Blatsis|
|Date of birth||6 July 1977|
|Place of birth||Melbourne, Australia|
|Height||1.90 m (6 ft 3 in)|
|2000–2001||→ Sheffield Wednesday (loan)||6||(0)|
|2004||St Patrick's Athletic||0||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 18 June 2014.
Blatsis was born in Melbourne. He started his career at his home club South Melbourne making 104 league appearances before moving to English Premier League side Derby County in the summer of 2000. He subsequently joined First Division Sheffield Wednesday on loan making six appearances. After making only two appearances for Derby he was released and in March 2002 joined Division Two side Colchester United on a short term deal. He made seven appearances for the club becoming a fan favorite in the process. However, he left the club at the end of the season.  He then joined Turkish team Kocaelispor, where he played until he left the club for financial reasons during his second season. A brief move to Irish club St Patrick's Athletic followed, but after only two cup appearances he left in May 2004. After unsuccessful trials with Coventry City and FC Twente, he returned to his first club, South Melbourne in early 2005. He stayed at the club until he retired in 2009 after a series of injuries.
He played for the Australian Under-20 and Under-23 sides before earning two senior caps and a place in the squad for the 2000 Summer Olympics.
|South Melbourne||1995–96||National Soccer League||19||1||8||0||0||0||27||1|
|South Melbourne total||96||4||10||0||4||0||110||4|
|Derby County||2000–01||Premier League||2||0||0||0||0||0||2||0|
|Sheffield Wednesday (loan)||2000–01||First Division||6||0||2||0||0||0||8||0|
|Colchester United||2001–02||Second Division||7||0||0||0||0||0||7||0|
|2003–04||TFF First League||2||0||1||0||0||0||3||0|
|St Patrick's Athletic||2004||League of Ireland||0||0||2||0||0||0||2||0|
|South Melbourne||2005||Victorian Premier League||15||0||0||0||0||0||15||0|
|South Melbourne total||26||0||0||0||0||0||26||0|
|Australia national team|
- Oceania Club Championship: 1999
- National Soccer League Championship: 1997–98, 1998–99
- National Soccer League Premiership: 1997–98
- NSL Cup: 1995–96
- Victorian Premier League: 2006
- "FansNetwork/TheU'sual - Whatever Happened To... Con Blatsis - Colchester United news". Fansnetwork.co.uk. 3 December 2011.
- "Veteran SMFC defender announces retirement". Smfc.com.au. 3 June 2009.
- Con Blatsis at National-Football-Teams.com