| Sunday 16 May 2004 |
| Italian Serie A |
| Lazio |
2 (1) |
Modena |
1 (0) |
| Sunday 9 May 2004 |
| Italian Serie A |
| Brescia |
2 (0) |
Lazio |
1 (0) |
| Sunday 2 May 2004 |
| Italian Serie A |
| Lazio |
1 (1) |
Reggina |
1 (0) |
| Sunday 25 April 2004 |
| Italian Serie A |
| Inter Milan |
0 (0) |
Lazio |
0 (0) |
| Wednesday 21 April 2004 |
| Italian Serie A |
| Lazio |
1 (1) |
Roma |
1 (0) |
| Sunday 18 April 2004 |
| Italian Serie A |
| Lazio |
4 (1) |
Ancona |
2 (1) |
| Saturday 10 April 2004 |
| Italian Serie A |
| Juventus |
1 (0) |
Lazio |
0 (0) |
| Sunday 4 April 2004 |
| Italian Serie A |
| Lazio |
5 (3) |
Siena |
2 (2) |
| Sunday 28 March 2004 |
| Italian Serie A |
| Perugia |
1 (0) |
Lazio |
2 (1) |
| Thursday 25 March 2004 |
| Italian Serie A |
| Bologna |
2 (1) |
Lazio |
1 (1) |
| Sunday 14 March 2004 |
| Italian Serie A |
| Lazio |
2 (2) |
Udinese |
2 (1) |
| Sunday 29 February 2004 |
| Italian Serie A |
| Lazio |
0 (0) |
AC Milan |
1 (0) |
| Sunday 22 February 2004 |
| Italian Serie A |
| Chievo |
0 (0) |
Lazio |
0 (0) |
| Saturday 14 February 2004 |
| Italian Serie A |
| Lazio |
3 (2) |
Empoli |
0 (0) |
| Sunday 8 February 2004 |
| Italian Serie A |
| Parma |
0 (0) |
Lazio |
3 (1) |
| Sunday 1 February 2004 |
| Italian Serie A |
| Lazio |
1 (1) |
Sampdoria |
1 (0) |
| Sunday 25 January 2004 |
| Italian Serie A |
| Lecce |
0 (0) |
Lazio |
1 (0) |
| Saturday 17 January 2004 |
| Italian Serie A |
| Modena |
1 (0) |
Lazio |
1 (1) |
| Sunday 11 January 2004 |
| Italian Serie A |
| Lazio |
0 (0) |
Brescia |
1 (1) |
| Tuesday 6 January 2004 |
| Italian Serie A |
| Reggina |
2 (0) |
Lazio |
1 (1) |
| Sunday 21 December 2003 |
| Italian Serie A |
| Lazio |
2 (1) |
Inter Milan |
1 (1) |
| Sunday 14 December 2003 |
| Italian Serie A |
| Ancona |
0 (0) |
Lazio |
1 (0) |
| Tuesday 9 December 2003 |
| European Champion Clubs Cup Group G |
| Sparta Prague |
1 (0) |
Lazio |
0 (0) |
| Saturday 6 December 2003 |
| Italian Serie A |
| Lazio |
2 (2) |
Juventus |
0 (0) |
| Saturday 29 November 2003 |
| Italian Serie A |
| Siena |
3 (2) |
Lazio |
0 (0) |
| Wednesday 26 November 2003 |
| European Champion Clubs Cup Group G |
| Lazio |
1 (0) |
Besiktas |
1 (1) |
| Sunday 23 November 2003 |
| Italian Serie A |
| Lazio |
3 (1) |
Perugia |
1 (0) |
| Sunday 9 November 2003 |
| Italian Serie A |
| Roma |
2 (0) |
Lazio |
0 (0) |
| Tuesday 4 November 2003 |
| European Champion Clubs Cup Group G |
| Lazio |
0 (0) |
Chelsea |
4 (1) |
| Saturday 1 November 2003 |
| Italian Serie A |
| Udinese |
1 (1) |
Lazio |
2 (2) |
| Sunday 26 October 2003 |
| Italian Serie A |
| Lazio |
2 (0) |
Bologna |
1 (0) |
| Wednesday 22 October 2003 |
| European Champion Clubs Cup Group G |
| Chelsea |
2 (0) |
Lazio |
1 (1) |
| Sunday 19 October 2003 |
| Italian Serie A |
| AC Milan |
1 (1) |
Lazio |
0 (0) |
| Sunday 5 October 2003 |
| Italian Serie A |
| Lazio |
1 (0) |
Chievo |
0 (0) |
| Wednesday 1 October 2003 |
| European Champion Clubs Cup Group G |
| Lazio |
2 (0) |
Sparta Prague |
2 (2) |
| Sunday 28 September 2003 |
| Italian Serie A |
| Empoli |
2 (0) |
Lazio |
2 (1) |
| Sunday 21 September 2003 |
| Italian Serie A |
| Lazio |
2 (1) |
Parma |
3 (1) |
| Tuesday 16 September 2003 |
| European Champion Clubs Cup Group G |
| Besiktas |
0 (0) |
Lazio |
2 (1) |
| Saturday 13 September 2003 |
| Italian Serie A |
| Sampdoria |
1 (0) |
Lazio |
2 (1) |
| Sunday 31 August 2003 |
| Italian Serie A |
| Lazio |
4 (3) |
Lecce |
1 (0) |
| Wednesday 27 August 2003 |
| European Champion Clubs Cup Third Qualifying Round 2nd Leg |
| Benfica |
0 (0) |
Lazio |
1 (1) |
| Wednesday 13 August 2003 |
| European Champion Clubs Cup Third Qualifying Round 1st Leg |
| Lazio |
3 (1) |
Benfica |
1 (0) |
