2003–04 Suomi-sarja season

The 2003-04 Suomi-sarja season was the fourth season of the Suomi-sarja as the third level of ice hockey in Finland.

Quarterfinals

 * Jokipojat - PaKa Kuusamo 2:1 (11:1, 0:1 OT, 8:3)
 * HeKi Heinola - Raahe-Kiekko 2:0 (8:1, 3:1)
 * Jeppis Pietarsaari - VG-62 Naantali 2:0 (2:1, 7:5)
 * Diskos Jyväskylä - Koo-Vee 0:2 (4:5 OT, 3:4)

Semifinals

 * Jokipojat - Jeppis Pietarsaari 2:0 (8:1, 3:1)
 * Koo-Vee - HeKi Heinola 2:1 (5:2, 1:7, 4:2)

Jokipojat qualified for the Mestis by finishing second in the league qualification round. They were declared Suomi-sarja champions as a result.

Qualification round

 * Kiekko-Oulu - PePo HC Lappeenranta 0:2 (1:3, 4:5 OT)
 * Ahmat Haukipudas - Vermuntilan Tempo HT 0:2 (3:6, 2:6)