German Railways (DB) operates a train from Berlin to Wismar every 2 hours. Tickets cost $40 - $60 and the journey takes 1 h 9 min. 2 other operators also service this route. Alternatively, FlixBus operates a bus from Berlin to Wismar 3 times a day. Tickets cost $13 - $23 and the journey takes 2 h 50 min. FlixBus also services this route 3 times a day.
From Berlin Hbf (tief) train to Ludwigslust then train to Wismar. 2 h 45 min 56€. From S+U Alexanderplatz Bhf train to Wismar, Bahnhof. 3 h 18 min 35€. From Berlin, Berlin Alexanderplatz bus to Rostock, Rostock central bus station then bus to Wismar. 4 h 40 min 23€. From Berlin rideshare to Wismar. 2 h 49 min 12€. From Berlin drive to Wismar. 2 h 20 min 32€.