diff --git a/Documentation/config/format.adoc b/Documentation/config/format.adoc
index ab0710e86a3e2ca7d0724e174213cada4a611cb4..df9e88d7e1e941de3fb1ac50daef0f6189037305 100644
--- a/Documentation/config/format.adoc
+++ b/Documentation/config/format.adoc
@@ -37,6 +37,10 @@ format.cc::
 	by mail.  See the --to and --cc options in
 	linkgit:git-format-patch[1].
 
+format.ccCmd::
+	Program to generate list of additional CC recipients for all patches.
+	See the --cc-cmd option in linkgit:git-format-patch[1].
+
 format.subjectPrefix::
 	The default for format-patch is to output files with the '[PATCH]'
 	subject prefix. Use this variable to change that prefix.
diff --git a/Documentation/git-format-patch.adoc b/Documentation/git-format-patch.adoc
index a8b53db9a6635b69cdd86241cc1f25936f224ef6..1ba5359cd36e9891ce4b9d4b651455de86bc8300 100644
--- a/Documentation/git-format-patch.adoc
+++ b/Documentation/git-format-patch.adoc
@@ -22,7 +22,7 @@ SYNOPSIS
 		   [--cover-from-description=<mode>]
 		   [--rfc[=<rfc>]] [--subject-prefix=<subject-prefix>]
 		   [(--reroll-count|-v) <n>]
-		   [--to=<email>] [--cc=<email>]
+		   [--to=<email>] [--cc=<email>] [--cc-cmd=<program>]
 		   [--[no-]cover-letter] [--quiet]
 		   [--[no-]encode-email-headers]
 		   [--no-notes | --notes[=<ref>]]
@@ -280,6 +280,11 @@ e.g., `--rfc='-(WIP)'` results in "PATCH (WIP)".
 	The negated form `--no-cc` discards all `Cc:` headers added so
 	far (from config or command line).
 
+--cc-cmd=<program>::
+	Specify a program to execute which generates a list of recipients to CC
+	on all patches. Output of this program must be a single email address
+	per line. This option overrides `format.ccCmd` configuration.
+
 --from::
 --from=<ident>::
 	Use `ident` in the `From:` header of each commit email. If the
diff --git a/builtin/log.c b/builtin/log.c
index 24a57c20a410e4921ca055035258a3fa224813db..cb88dda065a0665611613c1c059f20d96b38d624 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -40,6 +40,7 @@
 #include "mailmap.h"
 #include "progress.h"
 #include "commit-slab.h"
+#include "run-command.h"
 
 #include "commit-reach.h"
 #include "range-diff.h"
@@ -1020,6 +1021,7 @@ struct format_config {
 	struct string_list extra_hdr;
 	struct string_list extra_to;
 	struct string_list extra_cc;
+	char *cc_cmd;
 	int keep_subject;
 	int subject_prefix;
 	struct strbuf sprefix;
@@ -1053,6 +1055,7 @@ static void format_config_release(struct format_config *cfg)
 	string_list_clear(&cfg->extra_cc, 0);
 	strbuf_release(&cfg->sprefix);
 	free(cfg->fmt_patch_suffix);
+	free(cfg->cc_cmd);
 }
 
 static enum cover_from_description parse_cover_from_description(const char *arg)
@@ -1118,6 +1121,12 @@ static int git_format_config(const char *var, const char *value,
 		string_list_append(&cfg->extra_cc, value);
 		return 0;
 	}
+	if (!strcmp(var, "format.cccmd")) {
+		if (!value)
+			return config_error_nonbool(var);
+		cfg->cc_cmd = xstrdup(value);
+		return 0;
+	}
 	if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff") ||
 	    !strcmp(var, "color.ui") || !strcmp(var, "diff.submodule")) {
 		return 0;
@@ -2014,6 +2023,27 @@ static void infer_range_diff_ranges(struct strbuf *r1,
 	}
 }
 
+static void run_cc_cmd(const char *prog, struct string_list *cc_list)
+{
+	struct child_process cmd = CHILD_PROCESS_INIT;
+	struct strbuf line = STRBUF_INIT;
+	FILE *fh;
+
+	strvec_push(&cmd.args, prog);
+	cmd.out = -1;
+
+	if (start_command(&cmd))
+		return;
+
+	fh = xfdopen(cmd.out, "r");
+	while (strbuf_getline(&line, fh) != EOF)
+		string_list_append(cc_list, line.buf);
+
+	fclose(fh);
+	finish_command(&cmd);
+	strbuf_release(&line);
+}
+
 int cmd_format_patch(int argc,
 		     const char **argv,
 		     const char *prefix,
@@ -2064,6 +2094,7 @@ int cmd_format_patch(int argc,
 		.revs = &rev,
 	};
 	const char *fmt_patch_suffix = NULL;
+	const char *cc_cmd = NULL;
 
 	const struct option builtin_format_patch_options[] = {
 		OPT_CALLBACK_F('n', "numbered", &cfg, NULL,
@@ -2118,6 +2149,8 @@ int cmd_format_patch(int argc,
 			    N_("add email header"), header_callback),
 		OPT_STRING_LIST(0, "to", &cfg.extra_to, N_("email"), N_("add To: header")),
 		OPT_STRING_LIST(0, "cc", &cfg.extra_cc, N_("email"), N_("add Cc: header")),
+		OPT_STRING(0, "cc-cmd", &cc_cmd, N_("program"),
+			   N_("program to generate additional Cc addresses for all patches")),
 		OPT_CALLBACK_F(0, "from", &cfg.from, N_("ident"),
 			    N_("set From address to <ident> (or committer ident if absent)"),
 			    PARSE_OPT_OPTARG, from_callback),
@@ -2238,6 +2271,9 @@ int cmd_format_patch(int argc,
 		strbuf_addch(&buf, '\n');
 	}
 
+	if (cc_cmd || cfg.cc_cmd)
+		run_cc_cmd(cc_cmd ? cc_cmd : cfg.cc_cmd, &cfg.extra_cc);
+
 	if (cfg.extra_cc.nr)
 		strbuf_addstr(&buf, "Cc: ");
 	for (i = 0; i < cfg.extra_cc.nr; i++) {
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 2782b1fc183e8f1247e9b3f75a95f32569fdfc88..1cd67cc9d9616f299faeec33c3be3a9c05ea92d3 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -2547,4 +2547,30 @@ test_expect_success 'format-patch --default-prefix overrides format.noprefix' '
 	grep "^--- a/blorp" actual
 '
 
+test_expect_success 'additional cc from --cc-cmd' '
+	test_when_finished "rm -f foo.sh" &&
+
+	write_script foo.sh <<-\EOF &&
+	printf "%s\n" foo@bar.baz
+	EOF
+
+	git format-patch --no-cc --cc-cmd="$PWD/foo.sh" --stdout -2 >actual &&
+
+	grep -c "^Cc: foo@bar.baz" actual >count &&
+	test "$(cat count)" -eq 2
+'
+
+test_expect_success 'additional cc from format.ccCmd config' '
+	test_when_finished "rm -f foo.sh" &&
+
+	write_script foo.sh <<-\EOF &&
+	printf "%s\n" foo@bar.baz
+	EOF
+
+	git -c format.ccCmd="$PWD/foo.sh" format-patch --no-cc --stdout -2 >actual &&
+
+	grep -c "^Cc: foo@bar.baz" actual >count &&
+	test "$(cat count)" -eq 2
+'
+
 test_done