'''Kepekaan kapital''' ({{lang-en|case sensitivity}}) padaadalah perlakuan [[komputer]] terhadap [[kapitalisasi huruf]], yaitu apakah kapital besar dan kapital kecil dianggap berbeda (peka kapital; ''case sensitive'') atau sama (takpeka kapital; ''case insensitive''). Kepekaan kapital antara lain diterapkan pada [[bahasa pemrograman]] <ref name="k&r1e">{{cite book | last = Kernighan | first = Brian W. | last2 = Ritchie | first2 = Dennis M. chapter=Chapter 2: Types, Operators and Expressions |page=33 | title = The C Programming Language | edition = 1st | publisher = Prentice Hall |year=1978 | location = Englewood Cliffs, NJ | isbn = 0-13-110163-3 }}</ref>, [[algoritme pencarian string|pencarian teks]] <ref>{{cite web|url=https://code.google.com/p/case-sensitive-search/ |title=case-sensitive-search - case sensitive google search - Google Project Hosting |work=code.google.com |accessdate=2013-05-20}}</ref>, dan [[sistem berkas]] <ref>{{cite web|url=http://support.microsoft.com/kb/100625 |title=Filenames are Case Sensitive on NTFS Volumes |work=support.microsoft.com |date=2006-11-01 |accessdate=2013-05-20}}</ref>.
