The WORST seasons of CSI: Crime Scene Investigation

Every season of CSI: Crime Scene Investigation ever, ranked from worst to best by thousands of votes from fans of the show. The worst seasons of CSI: Crime Scene Investigation!

CSI is a crime drama in which the characters use cutting-edge forensic tools to examine the evidence to solve the case. Rather than asking 'whodunnit' (investigating witnesses/suspects), CSI explores the 'howdunnit'.

Last Updated: 9/9/2024Network: CBSStatus: Ended
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Season 15
star
7.19
53 votes

#1 - Season 15

First Aired 9/29/2014

Season 10
star
7.31
54 votes

#2 - Season 10

First Aired 9/25/2009

Season 14
star
7.48
42 votes

#3 - Season 14

First Aired 9/26/2013

Season 11
star
7.64
50 votes

#4 - Season 11

First Aired 9/24/2010

Season 8
star
7.69
59 votes

#5 - Season 8

First Aired 9/28/2007

Season 12
star
7.70
44 votes

#6 - Season 12

First Aired 9/22/2011

Season 9
star
7.73
52 votes

#7 - Season 9

First Aired 10/10/2008

Season 13
star
7.75
44 votes

#8 - Season 13

First Aired 9/27/2012

Season 7
star
7.85
61 votes

#9 - Season 7

First Aired 9/22/2006

Season 5
star
7.89
56 votes

#10 - Season 5

First Aired 9/24/2004

Season 6
star
7.92
59 votes

#11 - Season 6

First Aired 9/23/2005

Season 3
star
7.94
64 votes

#12 - Season 3

First Aired 9/26/2002

Season 2
star
8.01
72 votes

#13 - Season 2

First Aired 9/28/2001

Season 4
star
8.08
62 votes

#14 - Season 4

First Aired 9/25/2003

Season 1
star
8.14
105 votes

#15 - Season 1

First Aired 10/7/2000