diff --git a/src/articulated_vehicles.cpp b/src/articulated_vehicles.cpp
index 44a45ac7fc..cfaab25986 100644
--- a/src/articulated_vehicles.cpp
+++ b/src/articulated_vehicles.cpp
@@ -225,20 +225,6 @@ CargoTypes GetUnionOfArticulatedRefitMasks(EngineID engine, bool include_initial
 	return union_mask;
 }
 
-/**
- * Ands the refit_masks of all articulated parts.
- * @param engine the first part
- * @param include_initial_cargo_type if true the default cargo type of the vehicle is included; if false only the refit_mask
- * @return bit mask of CargoIDs which are a refit option for every articulated part (with default capacity > 0)
- */
-CargoTypes GetIntersectionOfArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type)
-{
-	CargoTypes union_mask, intersection_mask;
-	GetArticulatedRefitMasks(engine, include_initial_cargo_type, &union_mask, &intersection_mask);
-	return intersection_mask;
-}
-
-
 /**
  * Tests if all parts of an articulated vehicle are refitted to the same cargo.
  * Note: Vehicles not carrying anything are ignored
diff --git a/src/articulated_vehicles.h b/src/articulated_vehicles.h
index a98833b003..819c27d3c1 100644
--- a/src/articulated_vehicles.h
+++ b/src/articulated_vehicles.h
@@ -18,7 +18,6 @@ CargoArray GetCapacityOfArticulatedParts(EngineID engine);
 void AddArticulatedParts(Vehicle *first);
 void GetArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type, CargoTypes *union_mask, CargoTypes *intersection_mask);
 CargoTypes GetUnionOfArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type);
-CargoTypes GetIntersectionOfArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type);
 bool IsArticulatedVehicleCarryingDifferentCargoes(const Vehicle *v, CargoID *cargo_type);
 bool IsArticulatedVehicleRefittable(EngineID engine);
 bool IsArticulatedEngine(EngineID engine_type);
diff --git a/src/group.h b/src/group.h
index ca867985bc..05a203a53c 100644
--- a/src/group.h
+++ b/src/group.h
@@ -110,7 +110,6 @@ Money GetGroupProfitLastYearMinAge(CompanyID company, GroupID id_g, VehicleType
 
 void SetTrainGroupID(Train *v, GroupID grp);
 void UpdateTrainGroupID(Train *v);
-void RemoveVehicleFromGroup(const Vehicle *v);
 void RemoveAllGroupsForCompany(const CompanyID company);
 bool GroupIsInGroup(GroupID search, GroupID group);
 
diff --git a/src/group_cmd.cpp b/src/group_cmd.cpp
index e202177884..4fded9ebbf 100644
--- a/src/group_cmd.cpp
+++ b/src/group_cmd.cpp
@@ -714,19 +714,6 @@ CommandCost CmdSetGroupFlag(DoCommandFlag flags, GroupID group_id, GroupFlags fl
 	return CommandCost();
 }
 
-/**
- * Decrease the num_vehicle variable before delete an front engine from a group
- * @note Called in CmdSellRailWagon and DeleteLasWagon,
- * @param v     FrontEngine of the train we want to remove.
- */
-void RemoveVehicleFromGroup(const Vehicle *v)
-{
-	if (!v->IsPrimaryVehicle()) return;
-
-	if (!IsDefaultGroupID(v->group_id)) GroupStatistics::CountVehicle(v, -1);
-}
-
-
 /**
  * Affect the groupID of a train to new_g.
  * @note called in CmdAddVehicleGroup and CmdMoveRailVehicle
diff --git a/src/newgrf_text.cpp b/src/newgrf_text.cpp
index a4b984ca88..40c4d87156 100644
--- a/src/newgrf_text.cpp
+++ b/src/newgrf_text.cpp
@@ -744,8 +744,6 @@ struct TextRefStack {
 		this->grffile = grffile;
 		this->used = true;
 	}
-
-	void RewindStack() { this->position = 0; }
 };
 
 /** The stack that is used for TTDP compatible string code parsing */
@@ -819,11 +817,6 @@ void StopTextRefStackUsage()
 	_newgrf_textrefstack.used = false;
 }
 
-void RewindTextRefStack()
-{
-	_newgrf_textrefstack.RewindStack();
-}
-
 /**
  * FormatString for NewGRF specific "magic" string control codes
  * @param scc   the string control code that has been read
diff --git a/src/newgrf_text.h b/src/newgrf_text.h
index c3dfa08cee..66f591f588 100644
--- a/src/newgrf_text.h
+++ b/src/newgrf_text.h
@@ -45,7 +45,6 @@ bool CheckGrfLangID(byte lang_id, byte grf_version);
 
 void StartTextRefStackUsage(const struct GRFFile *grffile, byte numEntries, const uint32_t *values = nullptr);
 void StopTextRefStackUsage();
-void RewindTextRefStack();
 bool UsingNewGRFTextStack();
 struct TextRefStack *CreateTextRefStackBackup();
 void RestoreTextRefStackBackup(struct TextRefStack *backup);
diff --git a/src/object_gui.cpp b/src/object_gui.cpp
index 35133be345..756cf2e317 100644
--- a/src/object_gui.cpp
+++ b/src/object_gui.cpp
@@ -87,16 +87,6 @@ class BuildObjectWindow : public Window {
 		return objclass->GetSpec(_selected_object_index)->IsAvailable();
 	}
 
-	/**
-	 * Calculate the number of columns of the #WID_BO_SELECT_MATRIX widget.
-	 * @return Number of columns in the matrix.
-	 */
-	uint GetMatrixColumnCount()
-	{
-		const NWidgetBase *matrix = this->GetWidget<NWidgetBase>(WID_BO_SELECT_MATRIX);
-		return 1 + (matrix->current_x - matrix->smallest_x) / matrix->resize_x;
-	}
-
 public:
 	BuildObjectWindow(WindowDesc *desc, WindowNumber number) : Window(desc), info_height(1), filter_editbox(EDITBOX_MAX_SIZE * MAX_CHAR_LENGTH, EDITBOX_MAX_SIZE)
 	{
diff --git a/src/order_base.h b/src/order_base.h
index c607d97942..577dbe4c47 100644
--- a/src/order_base.h
+++ b/src/order_base.h
@@ -350,9 +350,6 @@ public:
 	 */
 	inline uint GetNumVehicles() const { return this->num_vehicles; }
 
-	bool IsVehicleInSharedOrdersList(const Vehicle *v) const;
-	int GetPositionInSharedOrderList(const Vehicle *v) const;
-
 	/**
 	 * Adds the given vehicle to this shared order list.
 	 * @note This is supposed to be called after the vehicle has been inserted
diff --git a/src/order_cmd.cpp b/src/order_cmd.cpp
index e20eac5056..fc32913bdc 100644
--- a/src/order_cmd.cpp
+++ b/src/order_cmd.cpp
@@ -571,31 +571,6 @@ void OrderList::RemoveVehicle(Vehicle *v)
 	if (v == this->first_shared) this->first_shared = v->NextShared();
 }
 
-/**
- * Checks whether a vehicle is part of the shared vehicle chain.
- * @param v is the vehicle to search in the shared vehicle chain.
- */
-bool OrderList::IsVehicleInSharedOrdersList(const Vehicle *v) const
-{
-	for (const Vehicle *v_shared = this->first_shared; v_shared != nullptr; v_shared = v_shared->NextShared()) {
-		if (v_shared == v) return true;
-	}
-
-	return false;
-}
-
-/**
- * Gets the position of the given vehicle within the shared order vehicle list.
- * @param v is the vehicle of which to get the position
- * @return position of v within the shared vehicle chain.
- */
-int OrderList::GetPositionInSharedOrderList(const Vehicle *v) const
-{
-	int count = 0;
-	for (const Vehicle *v_shared = v->PreviousShared(); v_shared != nullptr; v_shared = v_shared->PreviousShared()) count++;
-	return count;
-}
-
 /**
  * Checks whether all orders of the list have a filled timetable.
  * @return whether all orders have a filled timetable.
diff --git a/src/pathfinder/yapf/yapf_road.cpp b/src/pathfinder/yapf/yapf_road.cpp
index 13854dbfcc..86749c4f23 100644
--- a/src/pathfinder/yapf/yapf_road.cpp
+++ b/src/pathfinder/yapf/yapf_road.cpp
@@ -427,12 +427,6 @@ public:
 		return next_trackdir;
 	}
 
-	static uint stDistanceToTile(const RoadVehicle *v, TileIndex tile)
-	{
-		Tpf pf;
-		return pf.DistanceToTile(v, tile);
-	}
-
 	inline uint DistanceToTile(const RoadVehicle *v, TileIndex dst_tile)
 	{
 		/* handle special case - when current tile is the destination tile */
diff --git a/src/road.cpp b/src/road.cpp
index d2b4144fdd..bf607fdb36 100644
--- a/src/road.cpp
+++ b/src/road.cpp
@@ -270,39 +270,3 @@ RoadType GetRoadTypeByLabel(RoadTypeLabel label, bool allow_alternate_labels)
 	/* No matching label was found, so it is invalid */
 	return INVALID_ROADTYPE;
 }
-
-/**
- * Returns the available RoadSubTypes for the provided RoadType
- * If the given company is valid then will be returned a list of the available sub types at the current date, while passing
- * a deity company will make all the sub types available
- * @param rt the RoadType to filter
- * @param c the company ID to check the roadtype against
- * @param any_date whether to return only currently introduced roadtypes or also future ones
- * @returns the existing RoadSubTypes
- */
-RoadTypes ExistingRoadTypes(CompanyID c)
-{
-	/* Check only players which can actually own vehicles, editor and gamescripts are considered deities */
-	if (c < OWNER_END) {
-		const Company *company = Company::GetIfValid(c);
-		if (company != nullptr) return company->avail_roadtypes;
-	}
-
-	RoadTypes known_roadtypes = ROADTYPES_NONE;
-
-	/* Find used roadtypes */
-	for (Engine *e : Engine::IterateType(VEH_ROAD)) {
-		/* Check if the roadtype can be used in the current climate */
-		if (!HasBit(e->info.climates, _settings_game.game_creation.landscape)) continue;
-
-		/* Check whether available for all potential companies */
-		if (e->company_avail != MAX_UVALUE(CompanyMask)) continue;
-
-		known_roadtypes |= GetRoadTypeInfo(e->u.road.roadtype)->introduces_roadtypes;
-	}
-
-	/* Get the date introduced roadtypes as well. */
-	known_roadtypes = AddDateIntroducedRoadTypes(known_roadtypes, CalendarTime::MAX_DATE);
-
-	return known_roadtypes;
-}
diff --git a/src/strings.cpp b/src/strings.cpp
index 0eb4393dc6..56f7ed452f 100644
--- a/src/strings.cpp
+++ b/src/strings.cpp
@@ -1957,14 +1957,6 @@ const char *GetCurrentLocale(const char *param)
 const char *GetCurrentLocale(const char *param);
 #endif /* !(defined(_WIN32) || defined(__APPLE__)) */
 
-bool StringIDSorter(const StringID &a, const StringID &b)
-{
-	std::string stra = GetString(a);
-	std::string strb = GetString(b);
-
-	return StrNaturalCompare(stra, strb) < 0;
-}
-
 /**
  * Get the language with the given NewGRF language ID.
  * @param newgrflangid NewGRF languages ID to check.
diff --git a/src/strings_func.h b/src/strings_func.h
index 03fb1becb2..38417a85b7 100644
--- a/src/strings_func.h
+++ b/src/strings_func.h
@@ -110,8 +110,6 @@ extern TextDirection _current_text_dir; ///< Text direction of the currently sel
 void InitializeLanguagePacks();
 const char *GetCurrentLanguageIsoCode();
 
-bool StringIDSorter(const StringID &a, const StringID &b);
-
 /**
  * A searcher for missing glyphs.
  */
diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index d995547d63..2fc8ee6cc1 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -2353,32 +2353,6 @@ void Vehicle::HandleLoading(bool mode)
 	this->IncrementImplicitOrderIndex();
 }
 
-/**
- * Get a map of cargoes and free capacities in the consist.
- * @param capacities Map to be filled with cargoes and capacities.
- */
-void Vehicle::GetConsistFreeCapacities(std::map<CargoID, uint> &capacities) const
-{
-	for (const Vehicle *v = this; v != nullptr; v = v->Next()) {
-		if (v->cargo_cap == 0) continue;
-		auto pair = capacities.find(v->cargo_type);
-		if (pair == capacities.end()) {
-			capacities[v->cargo_type] = v->cargo_cap - v->cargo.StoredCount();
-		} else {
-			pair->second += v->cargo_cap - v->cargo.StoredCount();
-		}
-	}
-}
-
-uint Vehicle::GetConsistTotalCapacity() const
-{
-	uint result = 0;
-	for (const Vehicle *v = this; v != nullptr; v = v->Next()) {
-		result += v->cargo_cap;
-	}
-	return result;
-}
-
 /**
  * Send this vehicle to the depot using the given command(s).
  * @param flags   the command flags (like execute and such).
diff --git a/src/vehicle_base.h b/src/vehicle_base.h
index 62de9a368a..74369a856c 100644
--- a/src/vehicle_base.h
+++ b/src/vehicle_base.h
@@ -391,10 +391,6 @@ public:
 
 	void HandleLoading(bool mode = false);
 
-	void GetConsistFreeCapacities(std::map<CargoID, uint> &capacities) const;
-
-	uint GetConsistTotalCapacity() const;
-
 	/**
 	 * Marks the vehicles to be redrawn and updates cached variables
 	 *