diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 0ef255210b8820..0ecce514ac8ccf 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -10523,7 +10523,10 @@ A jump table for the options with a short description can be found at |Q_op|.
 			is not supported for file and directory names and
 			instead wildcard expansion is used.
 	  pum		Display the completion matches using the popup menu in
-			the same style as the |ins-completion-menu|.
+			the same style as the |ins-completion-menu|.  When an
+			info popup is shown next to the menu, it can be
+			scrolled by moving the mouse pointer on top of it and
+			using the scroll wheel.
 	  tagfile	When using CTRL-D to list matching tags, the kind of
 			tag and the file of the tag is listed.	Only one match
 			is displayed per line.  Often used tag kinds are:
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 7e26d6cdb4f456..ea20fa96b8ff98 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -2064,12 +2064,15 @@ getcmdline_int(
 	// navigating the wild menu (i.e. the key is not 'wildchar' or
 	// 'wildcharm' or Ctrl-N or Ctrl-P or Ctrl-A or Ctrl-L).
 	// If the popup menu is displayed, then PageDown and PageUp keys are
-	// also used to navigate the menu.
+	// also used to navigate the menu, and the mouse scroll wheel keys
+	// scroll the info popup.
 	end_wildmenu = (!key_is_wc
 		&& c != Ctrl_N && c != Ctrl_P && c != Ctrl_A && c != Ctrl_L);
 	end_wildmenu = end_wildmenu && (!cmdline_pum_active() ||
 			    (c != K_PAGEDOWN && c != K_PAGEUP
-			     && c != K_KPAGEDOWN && c != K_KPAGEUP));
+			     && c != K_KPAGEDOWN && c != K_KPAGEUP
+			     && c != K_MOUSEDOWN && c != K_MOUSEUP
+			     && c != K_MOUSELEFT && c != K_MOUSERIGHT));
 
 	// free expanded names when finished walking through matches
 	if (end_wildmenu)
@@ -2413,11 +2416,21 @@ getcmdline_int(
 		cmdline_left_right_mouse(c, &ignore_drag_release);
 		goto cmdline_not_changed;
 
-	// Mouse scroll wheel: ignored here
+	// Mouse scroll wheel: scroll the completion info popup when the mouse
+	// is on top of it, otherwise ignored here.
 	case K_MOUSEDOWN:
 	case K_MOUSEUP:
 	case K_MOUSELEFT:
 	case K_MOUSERIGHT:
+#ifdef FEAT_PROP_POPUP
+		if (cmdline_pum_active())
+		    cmdline_mousescroll(c == K_MOUSEDOWN ? MSCR_DOWN
+				      : c == K_MOUSEUP ? MSCR_UP
+				      : c == K_MOUSELEFT ? MSCR_LEFT
+				      : MSCR_RIGHT);
+#endif
+		goto cmdline_not_changed;
+
 	// Alternate buttons ignored here
 	case K_X1MOUSE:
 	case K_X1DRAG:
diff --git a/src/mouse.c b/src/mouse.c
index ddd94fffcf0e1f..9080334e7113b5 100644
--- a/src/mouse.c
+++ b/src/mouse.c
@@ -1396,6 +1396,62 @@ ins_mousescroll(int dir)
     }
 }
 
+#if defined(FEAT_PROP_POPUP) || defined(PROTO)
+/*
+ * Command-line mode implementation for scrolling in direction "dir", which is
+ * one of the MSCR_ values.  Scrolls the completion info popup when the mouse
+ * pointer is on top of it.
+ * Returns TRUE when the info popup was scrolled.
+ */
+    int
+cmdline_mousescroll(int dir)
+{
+    cmdarg_T	cap;
+    oparg_T	oa;
+
+    CLEAR_FIELD(cap);
+    clear_oparg(&oa);
+    cap.oap = &oa;
+    cap.arg = dir;
+
+    switch (dir)
+    {
+	case MSCR_UP:	 cap.cmdchar = K_MOUSEUP; break;
+	case MSCR_DOWN:	 cap.cmdchar = K_MOUSEDOWN; break;
+	case MSCR_LEFT:	 cap.cmdchar = K_MOUSELEFT; break;
+	case MSCR_RIGHT: cap.cmdchar = K_MOUSERIGHT; break;
+    }
+
+    if (mouse_row < 0 || mouse_col < 0)
+	return FALSE;
+
+    int	    row = mouse_row;
+    int	    col = mouse_col;
+    win_T   *wp;
+
+    // Only scroll when the mouse is on top of the info popup.
+    wp = mouse_find_win(&row, &col, FIND_POPUP);
+    if (wp == NULL || !WIN_IS_POPUP(wp) || !(wp->w_popup_flags & POPF_INFO)
+							|| !wp->w_has_scrollbar)
+	return FALSE;
+
+    win_T   *old_curwin = curwin;
+
+    curwin = wp;
+    curbuf = wp->w_buffer;
+    // Call the common mouse scroll function shared with other modes.
+    do_mousescroll(&cap);
+    curwin = old_curwin;
+    curbuf = curwin->w_buffer;
+
+    // Cmdline mode doesn't normally call update_screen(), so redraw the
+    // completion popup menu, which also repaints the info popup.
+    if (cmdline_pum_active())
+	cmdline_pum_display();
+    return TRUE;
+}
+#endif
+
 /*
  * Return TRUE if "c" is a mouse key.
  */
diff --git a/src/proto/mouse.pro b/src/proto/mouse.pro
index ead81849851ba3..0c320769ba1b81 100644
--- a/src/proto/mouse.pro
+++ b/src/proto/mouse.pro
@@ -4,6 +4,7 @@ void mouse_set_hor_scroll_step(long step);
 int do_mouse(oparg_T *oap, int c, int dir, long count, int fixindent);
 void ins_mouse(int c);
 void ins_mousescroll(int dir);
+int cmdline_mousescroll(int dir);
 int is_mouse_key(int c);
 int get_mouse_button(int code, int *is_click, int *is_drag);
 int get_pseudo_mouse_code(int button, int is_click, int is_drag);
diff --git a/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_1.dump b/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_1.dump
new file mode 100644
index 00000000000000..dc622d74ab2a6f
--- /dev/null
+++ b/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_1.dump
@@ -0,0 +1,12 @@
+| +0&#ffffff0@23|╔+0#0000001#e0e0e08|═@14|X| +0#0000000#ffffff0@33
+|~+0#4040ff13&| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1| @1| +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |2| @1| +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |3| @1| +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |4| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |5| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |6| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |7| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |8| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @6| +0#0000001#e0e0e08|a|p@1|l|e| @1|f| |f|r|u|i|t| |║| |i|n|f|o| |l|i|n|e| |9| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @6| +0#0000001#ffd7ff255|b|a|n|a|n|a| |f| |f|r|u|i|t| |╚+0&#e0e0e08|═@14|⇲| +0#4040ff13#ffffff0@33
+|:+0#0000000&|D|i|c|t|C|m|d| |a|p@1|l|e> @60
diff --git a/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_2.dump b/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_2.dump
new file mode 100644
index 00000000000000..115b1b949ee2f8
--- /dev/null
+++ b/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_2.dump
@@ -0,0 +1,12 @@
+| +0&#ffffff0@23|╔+0#0000001#e0e0e08|═@14|X| +0#0000000#ffffff0@33
+|~+0#4040ff13&| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|0| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1@1| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|2| | +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|3| | +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|4| | +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|5| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|6| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|7| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @6| +0#0000001#e0e0e08|a|p@1|l|e| @1|f| |f|r|u|i|t| |║| |i|n|f|o| |l|i|n|e| |1|8| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @6| +0#0000001#ffd7ff255|b|a|n|a|n|a| |f| |f|r|u|i|t| |╚+0&#e0e0e08|═@14|⇲| +0#4040ff13#ffffff0@33
+|:+0#0000000&|D|i|c|t|C|m|d| |a|p@1|l|e> @42|0|,|0|-|1| @8|A|l@1| 
diff --git a/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_3.dump b/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_3.dump
new file mode 100644
index 00000000000000..1a0c4fbcbb63ae
--- /dev/null
+++ b/src/testdir/dumps/Test_wildmenu_pum_info_mouse_scroll_3.dump
@@ -0,0 +1,12 @@
+| +0&#ffffff0@23|╔+0#0000001#e0e0e08|═@14|X| +0#0000000#ffffff0@33
+|~+0#4040ff13&| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |4| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |5| @1| +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |6| @1| +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |7| @1| +0#0000000#0000001|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |8| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |9| @1| +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1|0| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @22|║+0#0000001#e0e0e08| |i|n|f|o| |l|i|n|e| |1@1| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @6| +0#0000001#e0e0e08|a|p@1|l|e| @1|f| |f|r|u|i|t| |║| |i|n|f|o| |l|i|n|e| |1|2| | +0#0000000#a8a8a8255|║+0#0000001#e0e0e08| +0#4040ff13#ffffff0@33
+|~| @6| +0#0000001#ffd7ff255|b|a|n|a|n|a| |f| |f|r|u|i|t| |╚+0&#e0e0e08|═@14|⇲| +0#4040ff13#ffffff0@33
+|:+0#0000000&|D|i|c|t|C|m|d| |a|p@1|l|e> @42|0|,|0|-|1| @8|A|l@1| 
diff --git a/src/testdir/test_cmdline.vim b/src/testdir/test_cmdline.vim
index 31fb1f8ffc8cff..8fbaa502b8abd4 100644
--- a/src/testdir/test_cmdline.vim
+++ b/src/testdir/test_cmdline.vim
@@ -4768,6 +4768,52 @@ func Test_customlist_dict_completion_info_popup()
   call StopVimInTerminal(buf)
 endfunc
 
+" Test that the mouse scroll wheel scrolls the info popup of the command line
+" completion popup menu when the mouse pointer is on top of it.
+func Test_wildmenu_pum_info_mouse_scroll()
+  CheckScreendump
+  CheckFeature quickfix
+
+  let lines =<< trim END
+    func DictComp(A, L, P)
+      let info = join(map(range(1, 30), '"info line " .. v:val'), "\n")
+      return [
+            \ {'word': 'apple',  'kind': 'f', 'menu': 'fruit', 'info': info},
+            \ {'word': 'banana', 'kind': 'f', 'menu': 'fruit', 'info': info},
+            \ ]
+    endfunc
+    command -nargs=1 -complete=customlist,DictComp DictCmd echo <q-args>
+    set wildmenu wildoptions=pum completeopt=menu,popup mouse=a
+
+    " Put the mouse on top of the info popup and turn the scroll wheel.
+    func ScrollInfo(keys)
+      let pos = popup_getpos(popup_findinfo())
+      call test_setmouse(pos.line + 1, pos.col + 1)
+      call feedkeys(a:keys, 'nt')
+    endfunc
+    cnoremap <F6> <Cmd>call ScrollInfo(repeat("\<ScrollWheelDown>", 3))<CR>
+    cnoremap <F7> <Cmd>call ScrollInfo(repeat("\<ScrollWheelUp>", 2))<CR>
+  END
+  call writefile(lines, 'XtestWildmenuMouseScroll', 'D')
+  let buf = RunVimInTerminal('-S XtestWildmenuMouseScroll', #{rows: 12})
+
+  " The info popup is shown next to the completion popup menu.
+  call term_sendkeys(buf, ":DictCmd \<Tab>")
+  call VerifyScreenDump(buf, 'Test_wildmenu_pum_info_mouse_scroll_1', {})
+
+  " Scrolling down with the wheel scrolls the info popup without closing the
+  " completion popup menu.
+  call term_sendkeys(buf, "\<F6>")
+  call VerifyScreenDump(buf, 'Test_wildmenu_pum_info_mouse_scroll_2', {})
+
+  " Scrolling back up scrolls the info popup up again.
+  call term_sendkeys(buf, "\<F7>")
+  call VerifyScreenDump(buf, 'Test_wildmenu_pum_info_mouse_scroll_3', {})
+
+  call term_sendkeys(buf, "\<Esc>")
+  call StopVimInTerminal(buf)
+endfunc
+
 func Test_cmdline_complete_findfunc_dict()
   CheckScreendump