Season 1 (Navy NCIS)
23 episodes
September 23, 2003 - May 25, 2004
Season 2
23 episodes
September 28, 2004 - May 24, 2005
Season 3
24 episodes
September 20, 2005 - May 16, 2006
Season 4
24 episodes
September 19, 2006 - May 22, 2007
Season 5
19 episodes
September 25, 2007 - May 20, 2008
Season 6
25 episodes
September 23, 2008 - May 19, 2009
Season 7
24 episodes
September 22, 2009 - May 25, 2010
Season 8
24 episodes
September 21, 2010 - May 17, 2011
Season 9
24 episodes
September 20, 2011 - May 15, 2012
Season 10
24 episodes
September 25, 2012 - May 14, 2013
Season 11
24 episodes
September 24, 2013 - May 13, 2014
Season 12
24 episodes
September 23, 2014 - May 12, 2015
Season 13
24 episodes
September 22, 2015 - May 17, 2016
Season 14
24 episodes
September 20, 2016 - May 16, 2017
Season 15
24 episodes
September 26, 2017 - May 22, 2018
Season 16
24 episodes
September 25, 2018 - May 21, 2019
Season 17
20 episodes
September 24, 2019 - April 14, 2020
Season 18
16 episodes
November 17, 2020 - May 25, 2021
Season 19
21 episodes
September 20, 2021 - May 23, 2022
Season 20
22 episodes
September 19, 2022 - May 22, 2023
Season 21
10 episodes
February 12, 2024 - May 6, 2024
Season 22
10 episodes
October 14, 2024 - January 27, 2025
