Silesian Evangelical Church of the Augsburg Confession
（重定向自SECAC）
The Silesian Evangelical Church of the Augsburg Confession (SECAC) (Czech:Slezská církev evangelická augsburského vyznání (SCEAV), Polish:Śląski Kościół Ewangelicki Wyznania Augsburskiego) is the biggest Lutheran Church in the Czech Republic. Its congregations are located mainly in the Czech part of Cieszyn Silesia. A significant number of the followers belong to the Polish ethnic minority. There is strong heritage of pietism and evangelicalism present in the church. In 2009, it reported 15,632 baptized members.