Friedrich Conrad Dietrich Wyneken (May 13, 1810 in Verden an der Aller – May 4, 1876 in San Francisco) was a missionary, pastor and the second president of the Lutheran Church - Missouri Synod.
One hundred years after fellow Hannoverian Henry Muhlenberg brought together the pastors and congregations of colonial America, Wyneken gathered scattered German Protestants into confessional Lutheran congregations and forged them into a closely knit family of churches. It was Wyneken's influence which brought Wilhelm Sihler from Germany to America. Wyneken's missionary experience, method and plan would influence American Lutheran missions for many years to come. He has been called the "thunder after the lightning." He is commemorated on the Calendar of Saints of the Lutheran Church - Missouri Synod on May 4.
He was the first president of Concordia Theological Seminary.
Considered a "tireless" church worker, actually he confessed that he "suffered horribly from melancholy".