ODK may refer to:

• Omicron Delta Kappa
• Open Data Kit

• United States Senate elections, 1982 and 1983
• United States Senate elections, 1984
• United States Senate elections, 1986
• United States Senate elections, 1988
• United States Senate elections, 1990
• United States Senate elections, 1990 and 1991
• United States Senate elections, 1991
• United States Senate elections, 1992
• United States Senate elections, 1992 and 1993
• United States Senate elections, 1993
• United States Senate elections, 1994
• United States Senate elections, 1996
• United States Senate elections, 1998
• United States Senate elections, 2000
• United States Senate elections, 2002
• United States Senate elections, 2004
• United States Senate elections, 2006
• United States Senate elections, 2008
• United States Senate elections, 2010
• United States Senate elections, 2012
• United States Senate elections, 2012 and 2013
• United States Senate elections, 2014
• United States Senate elections, 2016
• United states senate elections 2016
• United States Senate elections, 2016 and 2017