diff --git a/pkgs/development/libraries/openssl/3.0/nix-ssl-cert-file.patch b/pkgs/development/libraries/openssl/3.0/nix-ssl-cert-file.patch
new file mode 100644
index 000000000000..e7090f49db6a
--- /dev/null
+++ b/pkgs/development/libraries/openssl/3.0/nix-ssl-cert-file.patch
@@ -0,0 +1,15 @@
+diff --git a/crypto/x509/by_file.c b/crypto/x509/by_file.c
+index 37d73ca84c..e328896234 100644
+--- a/crypto/x509/by_file.c
++++ b/crypto/x509/by_file.c
+@@ -54,7 +54,9 @@ static int by_file_ctrl_ex(X509_LOOKUP *ctx, int cmd, const char *argp,
+     switch (cmd) {
+     case X509_L_FILE_LOAD:
+         if (argl == X509_FILETYPE_DEFAULT) {
+-            file = ossl_safe_getenv(X509_get_default_cert_file_env());
++            file = ossl_safe_getenv("NIX_SSL_CERT_FILE");
++            if (!file)
++                file = ossl_safe_getenv(X509_get_default_cert_file_env());
+             if (file)
+                 ok = (X509_load_cert_crl_file_ex(ctx, file, X509_FILETYPE_PEM,
+                                                  libctx, propq) != 0);
diff --git a/pkgs/development/libraries/openssl/3.0/openssl-disable-kernel-detection.patch b/pkgs/development/libraries/openssl/3.0/openssl-disable-kernel-detection.patch
new file mode 100644
index 000000000000..baf162e88d09
--- /dev/null
+++ b/pkgs/development/libraries/openssl/3.0/openssl-disable-kernel-detection.patch
@@ -0,0 +1,22 @@
+diff --git a/Configure b/Configure
+index f0ad787bc4..a48d2008c6 100755
+--- a/Configure
++++ b/Configure
+@@ -1688,17 +1688,6 @@ unless ($disabled{devcryptoeng}) {
+ unless ($disabled{ktls}) {
+     $config{ktls}="";
+     if ($target =~ m/^linux/) {
+-        my $usr = "/usr/$config{cross_compile_prefix}";
+-        chop($usr);
+-        if ($config{cross_compile_prefix} eq "") {
+-            $usr = "/usr";
+-        }
+-        my $minver = (4 << 16) + (13 << 8) + 0;
+-        my @verstr = split(" ",`cat $usr/include/linux/version.h | grep LINUX_VERSION_CODE`);
+-
+-        if ($verstr[2] < $minver) {
+-            disable('too-old-kernel', 'ktls');
+-        }
+     } elsif ($target =~ m/^BSD/) {
+         my $cc = $config{CROSS_COMPILE}.$config{CC};
+         system("printf '#include <sys/types.h>\n#include <sys/ktls.h>' | $cc -E - >/dev/null 2>&1");
diff --git a/pkgs/development/libraries/openssl/default.nix b/pkgs/development/libraries/openssl/default.nix
index ca44788a289e..ca2e240dd869 100644
--- a/pkgs/development/libraries/openssl/default.nix
+++ b/pkgs/development/libraries/openssl/default.nix
@@ -198,11 +198,33 @@ in {
       ./1.1/nix-ssl-cert-file.patch
 
       (if stdenv.hostPlatform.isDarwin
-       then ./1.1/use-etc-ssl-certs-darwin.patch
-       else ./1.1/use-etc-ssl-certs.patch)
+       then ./use-etc-ssl-certs-darwin.patch
+       else ./use-etc-ssl-certs.patch)
     ] ++ lib.optionals (stdenv.isDarwin) [
       ./1.1/macos-yosemite-compat.patch
     ];
     withDocs = true;
   };
+
+  openssl_3_0 = common {
+    version = "3.0.0";
+    sha256 = "sha256-We7fy0bCUhTJvTftYHgpe03wHQEiZ/6enu4x9hvHBTY=";
+    patches = [
+      ./3.0/nix-ssl-cert-file.patch
+
+      # openssl will only compile in KTLS if the current kernel supports it.
+      # This patch disables build-time detection.
+      ./3.0/openssl-disable-kernel-detection.patch
+
+      (if stdenv.hostPlatform.isDarwin
+       then ./use-etc-ssl-certs-darwin.patch
+       else ./use-etc-ssl-certs.patch)
+    ];
+
+    withDocs = true;
+
+    extraMeta = with lib; {
+      license = licenses.asl20;
+    };
+  };
 }
diff --git a/pkgs/development/libraries/openssl/1.1/use-etc-ssl-certs-darwin.patch b/pkgs/development/libraries/openssl/use-etc-ssl-certs-darwin.patch
similarity index 100%
rename from pkgs/development/libraries/openssl/1.1/use-etc-ssl-certs-darwin.patch
rename to pkgs/development/libraries/openssl/use-etc-ssl-certs-darwin.patch
diff --git a/pkgs/development/libraries/openssl/1.1/use-etc-ssl-certs.patch b/pkgs/development/libraries/openssl/use-etc-ssl-certs.patch
similarity index 100%
rename from pkgs/development/libraries/openssl/1.1/use-etc-ssl-certs.patch
rename to pkgs/development/libraries/openssl/use-etc-ssl-certs.patch
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 171e7f110b47..6743f69c067f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18845,7 +18845,8 @@ with pkgs;
 
   inherit (callPackages ../development/libraries/openssl { })
     openssl_1_0_2
-    openssl_1_1;
+    openssl_1_1
+    openssl_3_0;
 
   openssl-chacha = callPackage ../development/libraries/openssl/chacha.nix { };