Japan Social Development Fund of the World Bank
http://www.worldbank.org/rmc/jsdf/approvals.htm
No deadline

Japan Fund for Poverty Reduction (JFPR) at the Asian Development Bank (ADB)
in Manila, the Philippines

http://202.4.3.34/JFPR/default.asp

Japan Special Fund of Inter-American Development Bank
http://www.iadb.org/jsfund/
No deadline

Japan’s Official Development Assistant (ODA) Fund
http://www.mofa.go.jp/policy/economy/it/oda/role0106.html
No deadline

Japan’s Grass Root Fund
http://www.mofa.go.jp/policy/oda/category/ngo/assis.html
No deadline

Japan International Cooperation Agency
http://www.jica.go.jp/english/
No deadline

USA

Grants.gov

This site allows organizations to electronically find and apply for competitive grant opportunities from all Federal grant-making agencies.

Global Development Alliance (GDA) Program of the U.S. Agency for International Development (USAID)
http://www.usaid.gov/gda/