diff --git a/CMakeLists.txt b/CMakeLists.txt
index 973cfb0d..4e548733 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -234,7 +234,6 @@ set(STA_SOURCE
   util/RiseFallMinMaxDelay.cc
   util/RiseFallValues.cc
   util/Stats.cc
-  util/StringSeq.cc
   util/StringSet.cc
   util/StringUtil.cc
   util/Transition.cc
diff --git a/graph/Graph.i b/graph/Graph.i
index 289ca3ba..4eab5270 100644
--- a/graph/Graph.i
+++ b/graph/Graph.i
@@ -229,12 +229,12 @@ arc_delays(TimingArc *arc)
   return delays;
 }
 
-StringSeq
+StdStringSeq
 arc_delay_strings(TimingArc *arc,
                   int digits)
 {
   Sta *sta = Sta::sta();
-  StringSeq delays;
+  StdStringSeq delays;
   DcalcAPIndex ap_count = sta->dcalcAnalysisPtCount();
   for (DcalcAPIndex ap_index = 0; ap_index < ap_count; ap_index++)
     delays.push_back(delayAsString(sta->arcDelay(self, arc, ap_index),
diff --git a/include/sta/Scene.hh b/include/sta/Scene.hh
index 9b2e61a0..28986377 100644
--- a/include/sta/Scene.hh
+++ b/include/sta/Scene.hh
@@ -28,7 +28,6 @@
 #include <vector>
 #include <set>
 
-#include "StringSeq.hh"
 #include "GraphClass.hh"
 #include "SearchClass.hh"
 
diff --git a/include/sta/Sta.hh b/include/sta/Sta.hh
index 483b3a00..f8fe4a95 100644
--- a/include/sta/Sta.hh
+++ b/include/sta/Sta.hh
@@ -29,7 +29,6 @@
 #include <string_view>
 #include <functional>
 
-#include "StringSeq.hh"
 #include "StringUtil.hh"
 #include "LibertyClass.hh"
 #include "NetworkClass.hh"
@@ -126,7 +125,7 @@ public:
   void setThreadCount(int thread_count);
 
   // define_corners compatibility.
-  void makeScenes(StringSeq *scene_names);
+  void makeScenes(StdStringSeq *scene_names);
   void makeScene(const std::string &name,
                  const std::string &mode_name,
                  const StdStringSeq &liberty_min_files,
@@ -976,7 +975,7 @@ public:
                           bool clk_gating_setup,
                           bool clk_gating_hold);
   void setReportPathFormat(ReportPathFormat format);
-  void setReportPathFieldOrder(StringSeq *field_names);
+  void setReportPathFieldOrder(StdStringSeq *field_names);
   void setReportPathFields(bool report_input_pin,
                            bool report_hier_pins,
                            bool report_net,
diff --git a/include/sta/StringSeq.hh b/include/sta/StringSeq.hh
deleted file mode 100644
index 9821b7b2..00000000
--- a/include/sta/StringSeq.hh
+++ /dev/null
@@ -1,38 +0,0 @@
-// OpenSTA, Static Timing Analyzer
-// Copyright (c) 2025, Parallax Software, Inc.
-// 
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-// 
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-// 
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <https://www.gnu.org/licenses/>.
-// 
-// The origin of this software must not be misrepresented; you must not
-// claim that you wrote the original software.
-// 
-// Altered source versions must be plainly marked as such, and must not be
-// misrepresented as being the original software.
-// 
-// This notice may not be removed or altered from any source distribution.
-
-#pragma once
-
-#include <vector>
-
-#include "StringUtil.hh"
-
-namespace sta {
-
-using StringSeq = std::vector<const char*>;
-
-void
-deleteContents(StringSeq *strings);
-
-} // namespace
diff --git a/include/sta/TclTypeHelpers.hh b/include/sta/TclTypeHelpers.hh
index e521c4a9..33d837d3 100644
--- a/include/sta/TclTypeHelpers.hh
+++ b/include/sta/TclTypeHelpers.hh
@@ -24,7 +24,6 @@
 
 #include "ArcDelayCalc.hh"
 #include "StringSet.hh"
-#include "StringSeq.hh"
 
 #include <tcl.h>
 
@@ -37,11 +36,6 @@ namespace sta {
 StringSet *
 tclListSetConstChar(Tcl_Obj *const source,
                     Tcl_Interp *interp);
-
-StringSeq *
-tclListSeqConstChar(Tcl_Obj *const source,
-                    Tcl_Interp *interp);
-
 StdStringSeq
 tclListSeqStdString(Tcl_Obj *const source,
                     Tcl_Interp *interp);
diff --git a/sdc/Sdc.i b/sdc/Sdc.i
index 2bca70b0..328abb32 100644
--- a/sdc/Sdc.i
+++ b/sdc/Sdc.i
@@ -1580,12 +1580,12 @@ filter_timing_arcs(const char *property,
 
 ////////////////////////////////////////////////////////////////
 
-StringSeq
+StdStringSeq
 group_path_names()
 {
   Sta *sta = Sta::sta();
   Sdc *sdc = sta->cmdSdc();
-  StringSeq pg_names;
+  StdStringSeq pg_names;
   for (auto const& [name, group] : sdc->groupPaths())
     pg_names.push_back(name);
   return pg_names;
diff --git a/search/ReportPath.cc b/search/ReportPath.cc
index ad9b9f11..4029d09d 100644
--- a/search/ReportPath.cc
+++ b/search/ReportPath.cc
@@ -211,15 +211,15 @@ ReportPath::findField(const char *name) const
 }
 
 void
-ReportPath::setReportFieldOrder(StringSeq *field_names)
+ReportPath::setReportFieldOrder(StdStringSeq *field_names)
 {
   // Disable all fields.
   for (ReportField *field : fields_)
     field->setEnabled(false);
 
   ReportFieldSeq next_fields;
-  for (const char *field_name : *field_names) {
-    ReportField *field = findField(field_name);
+  for (const std::string &field_name : *field_names) {
+    ReportField *field = findField(field_name.c_str());
     if (field) {
       next_fields.push_back(field);
       field->setEnabled(true);
diff --git a/search/ReportPath.hh b/search/ReportPath.hh
index 39c8b1a5..8c61e356 100644
--- a/search/ReportPath.hh
+++ b/search/ReportPath.hh
@@ -27,7 +27,7 @@
 #include <string>
 #include <vector>
 
-#include "StringSeq.hh"
+#include "StringUtil.hh"
 #include "SearchClass.hh"
 #include "PathEnd.hh"
 #include "CheckMinPulseWidths.hh"
@@ -49,7 +49,7 @@ public:
   virtual ~ReportPath();
   ReportPathFormat pathFormat() const { return format_; }
   void setPathFormat(ReportPathFormat format);
-  void setReportFieldOrder(StringSeq *field_names);
+  void setReportFieldOrder(StdStringSeq *field_names);
   void setReportFields(bool report_input_pin,
                        bool report_hier_pins,
                        bool report_net,
diff --git a/search/Search.i b/search/Search.i
index 8ffff0ff..f6ec25b4 100644
--- a/search/Search.i
+++ b/search/Search.i
@@ -395,7 +395,7 @@ set_report_path_format(ReportPathFormat format)
 }
     
 void
-set_report_path_field_order(StringSeq *field_names)
+set_report_path_field_order(StdStringSeq *field_names)
 {
   Sta::sta()->setReportPathFieldOrder(field_names);
   delete field_names;
@@ -753,7 +753,7 @@ define_scene_cmd(const char *name,
 }
 
 void
-define_scenes_cmd(StringSeq *scene_names)
+define_scenes_cmd(StdStringSeq *scene_names)
 {
   Sta *sta = Sta::sta();
   sta->makeScenes(scene_names);
diff --git a/search/Sta.cc b/search/Sta.cc
index 98fdbbf3..9bde46bc 100644
--- a/search/Sta.cc
+++ b/search/Sta.cc
@@ -2450,7 +2450,7 @@ void
 Sta::makeDefaultScene()
 {
   const char *name = "default";
-  StringSeq scene_names;
+  StdStringSeq scene_names;
   scene_names.push_back(name);
   Parasitics *parasitics = makeConcreteParasitics(name, "");
 
@@ -2468,7 +2468,7 @@ Sta::makeDefaultScene()
 
 // define_corners (before read_liberty).
 void
-Sta::makeScenes(StringSeq *scene_names)
+Sta::makeScenes(StdStringSeq *scene_names)
 {
   if (scene_names->size() > scene_count_max)
     report_->error(1553, "maximum scene count exceeded");
@@ -2478,7 +2478,7 @@ Sta::makeScenes(StringSeq *scene_names)
   mode->clear();
 
   deleteScenes();
-  for (const char *name : *scene_names)
+  for (const std::string &name : *scene_names)
     makeScene(name, mode, parasitics);
 
   cmd_scene_ = scenes_[0];
@@ -2729,7 +2729,7 @@ Sta::setReportPathFormat(ReportPathFormat format)
 }
 
 void
-Sta::setReportPathFieldOrder(StringSeq *field_names)
+Sta::setReportPathFieldOrder(StdStringSeq *field_names)
 {
   report_path_->setReportFieldOrder(field_names);
 }
diff --git a/tcl/StaTclTypes.i b/tcl/StaTclTypes.i
index b1c7b288..7d47632d 100644
--- a/tcl/StaTclTypes.i
+++ b/tcl/StaTclTypes.i
@@ -28,7 +28,6 @@
 #include "Machine.hh"
 #include "StringUtil.hh"
 #include "StringSet.hh"
-#include "StringSeq.hh"
 #include "PatternMatch.hh"
 #include "Network.hh"
 #include "Liberty.hh"
@@ -306,7 +305,7 @@ using namespace sta;
 }
 
 %typemap(in) StdStringSeq* {
-  $1 = tclListSeqStdString($input, interp);
+  $1 = tclListSeqStdStringPtr($input, interp);
 }
 
 %typemap(out) StringSeq* {
diff --git a/tcl/TclTypeHelpers.cc b/tcl/TclTypeHelpers.cc
index c5cc219d..adf21f62 100644
--- a/tcl/TclTypeHelpers.cc
+++ b/tcl/TclTypeHelpers.cc
@@ -50,26 +50,6 @@ tclListSetConstChar(Tcl_Obj *const source,
     return nullptr;
 }
 
-StringSeq *
-tclListSeqConstChar(Tcl_Obj *const source,
-                    Tcl_Interp *interp)
-{
-  Tcl_Size argc;
-  Tcl_Obj **argv;
-
-  if (Tcl_ListObjGetElements(interp, source, &argc, &argv) == TCL_OK) {
-    StringSeq *seq = new StringSeq;
-    for (int i = 0; i < argc; i++) {
-      int length;
-      const char *str = Tcl_GetStringFromObj(argv[i], &length);
-      seq->push_back(str);
-    }
-    return seq;
-  }
-  else
-    return nullptr;
-}
-
 StdStringSeq
 tclListSeqStdString(Tcl_Obj *const source,
                     Tcl_Interp *interp)
diff --git a/util/StringSeq.cc b/util/StringSeq.cc
deleted file mode 100644
index f5615d6c..00000000
--- a/util/StringSeq.cc
+++ /dev/null
@@ -1,36 +0,0 @@
-// OpenSTA, Static Timing Analyzer
-// Copyright (c) 2025, Parallax Software, Inc.
-// 
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-// 
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-// 
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <https://www.gnu.org/licenses/>.
-// 
-// The origin of this software must not be misrepresented; you must not
-// claim that you wrote the original software.
-// 
-// Altered source versions must be plainly marked as such, and must not be
-// misrepresented as being the original software.
-// 
-// This notice may not be removed or altered from any source distribution.
-
-#include "StringSeq.hh"
-
-namespace sta {
-
-void
-deleteContents(StringSeq *strings)
-{
-  for (const char *string : *strings)
-    stringDelete(string);
-}
-
-} // namespace
diff --git a/verilog/VerilogReaderPvt.hh b/verilog/VerilogReaderPvt.hh
index 6bbe8288..9f1fdffe 100644
--- a/verilog/VerilogReaderPvt.hh
+++ b/verilog/VerilogReaderPvt.hh
@@ -28,7 +28,6 @@
 #include <vector>
 #include <map>
 
-#include "StringSeq.hh"
 #include "StringUtil.hh"
 
 namespace sta {