diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index d5f3a6d39902..98be02da3b26 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -180,14 +180,6 @@ let
     ) args; in self;
 
 in {
-  ruby_1_9_3 = generic {
-    version = rubyVersion "1" "9" "3" "p551";
-    sha256 = {
-      src = "1s2ibg3s2iflzdv7rfxi1qqkvdbn2dq8gxdn0nxrb77ls5ffanxv";
-      git = "1r9xzzxmci2ajb34qb4y1w424mz878zdgzxkfp9w60agldxnb36s";
-    };
-  };
-
   ruby_2_0_0 = generic {
     version = rubyVersion "2" "0" "0" "p647";
     sha256 = {
diff --git a/pkgs/development/interpreters/ruby/patchsets.nix b/pkgs/development/interpreters/ruby/patchsets.nix
index a3aeaf6a8ba0..f1b82210aec2 100644
--- a/pkgs/development/interpreters/ruby/patchsets.nix
+++ b/pkgs/development/interpreters/ruby/patchsets.nix
@@ -1,32 +1,6 @@
 { patchSet, useRailsExpress, ops, patchLevel }:
 
 rec {
-  "1.9.3" = [
-    ./ssl_v3.patch
-    ./rand-egd.patch
-    ./ruby19-parallel-install.patch
-    ./bitperfect-rdoc.patch
-  ] ++ ops useRailsExpress [
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/01-fix-make-clean.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/02-zero-broken-tests.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/03-railsbench-gc.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/04-display-more-detailed-stack-trace.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/05-fork-support-for-gc-logging.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/06-track-live-dataset-size.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/07-webrick_204_304_keep_alive_fix.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/08-export-a-few-more-symbols-for-ruby-prof.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/09-thread-variables.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/10-faster-loading.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/11-falcon-st-opt.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/12-falcon-sparse-array.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/13-falcon-array-queue.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/14-railsbench-gc-fixes.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/15-show-full-backtrace-on-stack-overflow.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/16-configurable-fiber-stack-sizes.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/17-backport-psych-20.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/18-fix-missing-c-return-event.patch"
-    "${patchSet}/patches/ruby/1.9.3/p${patchLevel}/railsexpress/19-fix-process-daemon-call.patch"
-  ];
   "2.0.0" = [
     ./ssl_v3.patch
     ./rand-egd.patch
diff --git a/pkgs/development/interpreters/ruby/ruby19-parallel-install.patch b/pkgs/development/interpreters/ruby/ruby19-parallel-install.patch
deleted file mode 100644
index bb8063508732..000000000000
--- a/pkgs/development/interpreters/ruby/ruby19-parallel-install.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-Index: ruby-1.9.3-p392/lib/mkmf.rb
-===================================================================
---- ruby-1.9.3-p392.orig/lib/mkmf.rb
-+++ ruby-1.9.3-p392/lib/mkmf.rb
-@@ -2039,8 +2039,8 @@ static: $(STATIC_LIB)#{$extout ? " insta
-       end
-       for f in files
-         dest = "#{dir}/#{File.basename(f)}"
--        mfile.print("install-rb#{sfx}: #{dest} #{dir}\n")
--        mfile.print("#{dest}: #{f}\n")
-+        mfile.print("install-rb#{sfx}: #{dest}\n")
-+        mfile.print("#{dest}: #{f} #{timestamp_file(dir)}\n")
-         mfile.print("\t$(Q) $(#{$extout ? 'COPY' : 'INSTALL_DATA'}) #{f} $(@D#{sep})\n")
-         if defined?($installed_list) and !$extout
-           mfile.print("\t@echo #{dest}>>$(INSTALLED_LIST)\n")
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ddc6d5062db4..af1a6220ecf3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5888,7 +5888,6 @@ with pkgs;
   bundlerEnv = callPackage ../development/ruby-modules/bundler-env { };
 
   inherit (callPackage ../development/interpreters/ruby {})
-    ruby_1_9_3
     ruby_2_0_0
     ruby_2_1_10
     ruby_2_2_5
@@ -5897,7 +5896,6 @@ with pkgs;
 
   # Ruby aliases
   ruby = ruby_2_3;
-  ruby_1_9 = ruby_1_9_3;
   ruby_2_0 = ruby_2_0_0;
   ruby_2_1 = ruby_2_1_10;
   ruby_2_2 = ruby_2_2_5;