diff --git a/code/scripting/api/libs/ui.cpp b/code/scripting/api/libs/ui.cpp
index 5f97d18499b..554e70ffab4 100644
--- a/code/scripting/api/libs/ui.cpp
+++ b/code/scripting/api/libs/ui.cpp
@@ -72,6 +72,7 @@
 #include "scripting/api/objs/vecmath.h"
 #include "scripting/lua/LuaTable.h"
 #include "sound/audiostr.h"
+#include "sound/fsspeech.h"
 #include "stats/medals.h"
 #include "stats/stats.h"
 
@@ -682,6 +683,63 @@ ADE_LIB_DERIV(l_UserInterface_Brief,
 	"API for accessing data related to the Briefing UI.",
 	l_UserInterface);
 
+ADE_FUNC(playTextToSpeech,
+	l_UserInterface_Brief,
+	"string text",
+	"Speaks the given text using the engine's text-to-speech voice. Does nothing unless the briefing speech option is enabled. Color codes are stripped automatically.",
+	nullptr,
+	nullptr)
+{
+	const char* text = nullptr;
+	if (!ade_get_args(L, "s", &text))
+		return ADE_RETURN_NIL;
+
+	fsspeech_play(FSSPEECH_FROM_BRIEFING, text);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(stopTextToSpeech, l_UserInterface_Brief, nullptr, "Stops any text-to-speech playback.", nullptr, nullptr)
+{
+	SCP_UNUSED(L);
+	fsspeech_stop();
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(pauseTextToSpeech,
+	l_UserInterface_Brief,
+	"boolean pause",
+	"Pauses (true) or resumes (false) text-to-speech playback.",
+	nullptr,
+	nullptr)
+{
+	bool pause = true;
+	if (!ade_get_args(L, "b", &pause))
+		return ADE_RETURN_NIL;
+
+	fsspeech_pause(pause);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(isTextToSpeechPlaying,
+	l_UserInterface_Brief,
+	nullptr,
+	"Returns whether text-to-speech is currently speaking.",
+	"boolean",
+	"true if speaking, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_playing());
+}
+
+ADE_FUNC(isTextToSpeechEnabled,
+	l_UserInterface_Brief,
+	nullptr,
+	"Returns whether briefing text-to-speech is enabled and available.",
+	"boolean",
+	"true if enabled, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_play_from(FSSPEECH_FROM_BRIEFING));
+}
+
 ADE_FUNC(getBriefingMusicName,
 	l_UserInterface_Brief,
 	nullptr,
@@ -1074,6 +1132,63 @@ ADE_LIB_DERIV(l_UserInterface_CmdBrief,
 	"API for accessing data related to the Command Briefing UI.",
 	l_UserInterface);
 
+ADE_FUNC(playTextToSpeech,
+	l_UserInterface_CmdBrief,
+	"string text",
+	"Speaks the given text using the engine's text-to-speech voice. Does nothing unless the briefing speech option is enabled. Color codes are stripped automatically.",
+	nullptr,
+	nullptr)
+{
+	const char* text = nullptr;
+	if (!ade_get_args(L, "s", &text))
+		return ADE_RETURN_NIL;
+
+	fsspeech_play(FSSPEECH_FROM_BRIEFING, text);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(stopTextToSpeech, l_UserInterface_CmdBrief, nullptr, "Stops any text-to-speech playback.", nullptr, nullptr)
+{
+	SCP_UNUSED(L);
+	fsspeech_stop();
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(pauseTextToSpeech,
+	l_UserInterface_CmdBrief,
+	"boolean pause",
+	"Pauses (true) or resumes (false) text-to-speech playback.",
+	nullptr,
+	nullptr)
+{
+	bool pause = true;
+	if (!ade_get_args(L, "b", &pause))
+		return ADE_RETURN_NIL;
+
+	fsspeech_pause(pause);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(isTextToSpeechPlaying,
+	l_UserInterface_CmdBrief,
+	nullptr,
+	"Returns whether text-to-speech is currently speaking.",
+	"boolean",
+	"true if speaking, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_playing());
+}
+
+ADE_FUNC(isTextToSpeechEnabled,
+	l_UserInterface_CmdBrief,
+	nullptr,
+	"Returns whether briefing text-to-speech is enabled and available.",
+	"boolean",
+	"true if enabled, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_play_from(FSSPEECH_FROM_BRIEFING));
+}
+
 ADE_FUNC(getCmdBriefing,
 	l_UserInterface_CmdBrief,
 	nullptr,
@@ -1092,6 +1207,63 @@ ADE_LIB_DERIV(l_UserInterface_Debrief,
 	"API for accessing data related to the Debriefing UI.",
 	l_UserInterface);
 
+ADE_FUNC(playTextToSpeech,
+	l_UserInterface_Debrief,
+	"string text",
+	"Speaks the given text using the engine's text-to-speech voice. Does nothing unless the briefing speech option is enabled. Color codes are stripped automatically.",
+	nullptr,
+	nullptr)
+{
+	const char* text = nullptr;
+	if (!ade_get_args(L, "s", &text))
+		return ADE_RETURN_NIL;
+
+	fsspeech_play(FSSPEECH_FROM_BRIEFING, text);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(stopTextToSpeech, l_UserInterface_Debrief, nullptr, "Stops any text-to-speech playback.", nullptr, nullptr)
+{
+	SCP_UNUSED(L);
+	fsspeech_stop();
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(pauseTextToSpeech,
+	l_UserInterface_Debrief,
+	"boolean pause",
+	"Pauses (true) or resumes (false) text-to-speech playback.",
+	nullptr,
+	nullptr)
+{
+	bool pause = true;
+	if (!ade_get_args(L, "b", &pause))
+		return ADE_RETURN_NIL;
+
+	fsspeech_pause(pause);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(isTextToSpeechPlaying,
+	l_UserInterface_Debrief,
+	nullptr,
+	"Returns whether text-to-speech is currently speaking.",
+	"boolean",
+	"true if speaking, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_playing());
+}
+
+ADE_FUNC(isTextToSpeechEnabled,
+	l_UserInterface_Debrief,
+	nullptr,
+	"Returns whether briefing text-to-speech is enabled and available.",
+	"boolean",
+	"true if enabled, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_play_from(FSSPEECH_FROM_BRIEFING));
+}
+
 ADE_FUNC(initDebriefing,
 	l_UserInterface_Debrief,
 	nullptr,
@@ -1707,6 +1879,63 @@ ADE_LIB_DERIV(l_UserInterface_TechRoom,
 	"API for accessing data related to the Tech Room UIs.",
 	l_UserInterface);
 
+ADE_FUNC(playTextToSpeech,
+	l_UserInterface_TechRoom,
+	"string text",
+	"Speaks the given text using the engine's text-to-speech voice. Does nothing unless the tech room speech option is enabled. Color codes are stripped automatically.",
+	nullptr,
+	nullptr)
+{
+	const char* text = nullptr;
+	if (!ade_get_args(L, "s", &text))
+		return ADE_RETURN_NIL;
+
+	fsspeech_play(FSSPEECH_FROM_TECHROOM, text);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(stopTextToSpeech, l_UserInterface_TechRoom, nullptr, "Stops any text-to-speech playback.", nullptr, nullptr)
+{
+	SCP_UNUSED(L);
+	fsspeech_stop();
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(pauseTextToSpeech,
+	l_UserInterface_TechRoom,
+	"boolean pause",
+	"Pauses (true) or resumes (false) text-to-speech playback.",
+	nullptr,
+	nullptr)
+{
+	bool pause = true;
+	if (!ade_get_args(L, "b", &pause))
+		return ADE_RETURN_NIL;
+
+	fsspeech_pause(pause);
+	return ADE_RETURN_NIL;
+}
+
+ADE_FUNC(isTextToSpeechPlaying,
+	l_UserInterface_TechRoom,
+	nullptr,
+	"Returns whether text-to-speech is currently speaking.",
+	"boolean",
+	"true if speaking, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_playing());
+}
+
+ADE_FUNC(isTextToSpeechEnabled,
+	l_UserInterface_TechRoom,
+	nullptr,
+	"Returns whether tech room text-to-speech is enabled and available.",
+	"boolean",
+	"true if enabled, false otherwise")
+{
+	return ade_set_args(L, "b", fsspeech_play_from(FSSPEECH_FROM_TECHROOM));
+}
+
 ADE_FUNC(buildMissionList,
 	l_UserInterface_TechRoom,
 	nullptr,