2019–20 Central Coast Mariners FC season

The 2019–20 season was the Central Coast Mariners's 15th season since its establishment in 2004.

During the pre-season, Alen Stajcic signed a 3-year contract as the new coach.

On 24 March 2020, the FFA announced that the 2019–20 A-League season would be postponed until further notice due to the COVID-19 pandemic in Australia and New Zealand, and subsequently extended indefinitely. The season resumed on 17 July 2020.

Appearances and goals
† = Scholarship or youth listed player.

Overview
{|class="wikitable" style="text-align:left" !rowspan=2 style="width:140px;"|Competition !colspan=8|Record !style="width:40px;"|P !style="width:40px;"|W !style="width:40px;"|D !style="width:40px;"|L !style="width:40px;"|GF !style="width:40px;"|GA !style="width:40px;"|GD !style="width:70px;"|Win %
 * A-League
 * A-League


 * FFA Cup
 * FFA Cup

!Total