Paul B. Baltes (*18.06.1939 †07.11.2006) was Director of the Center for Lifespan Psychology at the Max Planck Institute for Human Development from 1980 to 2004. In 2005 he founded the Max Planck International Research Network on the Behavioral and Social Sciences of Aging (MaxnetAging). He was also Honorary Professor of Psychology at the Free University of Berlin and (part-time) Distinguished Professor of Psychology und Advanced Study Fellow at the University of Virginia.
After his wife's death in 1999 Paul B. Baltes established the Margret M. Baltes Foundation to promote their common goal of advancing lifespan developmental and gerontological research. After his death in 2006 it was renamed Margret M. and Paul B. Baltes Foundation.