Ziltendorf is a municipality in the Oder-Spree district, in Brandenburg, Germany.

From 1815 to 1947, Ziltendorf was part of the Prussian Province of Brandenburg.

After World War II, Ziltendorf was incorporated into the State of Brandenburg from 1947 to 1952 and the Bezirk Frankfurt of East Germany from 1952 to 1990. Since 1990, Ziltendorf has been part of Brandenburg.

Ziltendorf: Population development
within the current boundaries (2013)

Year Pop. ±% p.a. 1875 1,197 —     1890 1,361 +0.86% 1910 1,376 +0.05% 1925 1,431 +0.26% 1933 1,503 +0.62% 1939 1,414 −1.01% 1946 1,699 +2.66% 1950 2,026 +4.50% 1964 1,772 −0.95% 1971 1,849 +0.61% 1981 1,648 −1.14% 1985 1,566 −1.27% 1989 1,523 −0.69% 1990 1,493 −1.97% 1991 1,474 −1.27% 1992 1,473 −0.07% 1993 1,488 +1.02% 1994 1,500 +0.81% 1995 1,499 −0.07% 1996 1,503 +0.27%

Year Pop. ±% p.a. 1997 1,548 +2.99% 1998 1,568 +1.29% 1999 1,624 +3.57% 2000 1,658 +2.09% 2001 1,654 −0.24% 2002 1,668 +0.85% 2003 1,693 +1.50% 2004 1,695 +0.12% 2005 1,692 −0.18% 2006 1,685 −0.41% 2007 1,672 −0.77% 2008 1,650 −1.32% 2009 1,635 −0.91% 2010 1,613 −1.35% 2011 1,591 −1.36% 2012 1,584 −0.44% 2013 1,573 −0.69% 2014 1,561 −0.76% 2015 1,570 +0.58% 2016 1,528 −2.68%

Danny Langhagel (CDU) was elected in May 2014 for a term of five years.