diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e35d631..1f6427e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,8 @@ The git repositories are hosted at the following sites:
 ### Security
 ### Added
 
+* Added default option to bactext name functions so that NULL can be
+  returned when a name does not exist. (#1160)
 * Added library specific ltrim, rtrim, and trim string functions. (#1159)
 * Added library specific itoa, ltoa, ultoa, dtoa, utoa, and general
   print format with ASCII return functions. (#1157)
diff --git a/src/bacnet/bactext.c b/src/bacnet/bactext.c
index b39ad9f9..96daaa7c 100644
--- a/src/bacnet/bactext.c
+++ b/src/bacnet/bactext.c
@@ -74,6 +74,13 @@ const char *bactext_confirmed_service_name(uint32_t index)
         bacnet_confirmed_service_names, index, ASHRAE_Reserved_String);
 }
 
+const char *bactext_confirmed_service_name_default(
+    uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_confirmed_service_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_unconfirmed_service_names[] = {
     { SERVICE_UNCONFIRMED_I_AM, "I-Am" },
     { SERVICE_UNCONFIRMED_I_HAVE, "I-Have" },
@@ -100,6 +107,13 @@ const char *bactext_unconfirmed_service_name(uint32_t index)
         bacnet_unconfirmed_service_names, index, ASHRAE_Reserved_String);
 }
 
+const char *bactext_unconfirmed_service_name_default(
+    uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_unconfirmed_service_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_application_tag_names[] = {
     { BACNET_APPLICATION_TAG_NULL, "Null" },
     { BACNET_APPLICATION_TAG_BOOLEAN, "Boolean" },
@@ -319,6 +333,13 @@ const char *bactext_object_type_name(uint32_t index)
         ASHRAE_Reserved_String, Vendor_Proprietary_String);
 }
 
+const char *
+bactext_object_type_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_object_type_names, index, default_string);
+}
+
 const char *bactext_object_type_name_capitalized(uint32_t index)
 {
     return indtext_by_index_split_default(
@@ -326,6 +347,13 @@ const char *bactext_object_type_name_capitalized(uint32_t index)
         ASHRAE_Reserved_String, Vendor_Proprietary_String);
 }
 
+const char *bactext_object_type_name_capitalized_default(
+    uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_object_type_names_capitalized, index, default_string);
+}
+
 bool bactext_object_type_index(const char *search_name, uint32_t *found_index)
 {
     return indtext_by_istring(
@@ -1415,6 +1443,13 @@ const char *bactext_engineering_unit_name(uint32_t index)
     return ASHRAE_Reserved_String;
 }
 
+const char *bactext_engineering_unit_name_default(
+    uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_engineering_unit_names, index, default_string);
+}
+
 bool bactext_engineering_unit_index(
     const char *search_name, uint32_t *found_index)
 {
@@ -1446,6 +1481,13 @@ const char *bactext_reject_reason_name(uint32_t index)
         ASHRAE_Reserved_String, Vendor_Proprietary_String);
 }
 
+const char *
+bactext_reject_reason_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_reject_reason_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_abort_reason_names[] = {
     { ABORT_REASON_OTHER, "Other" },
     { ABORT_REASON_BUFFER_OVERFLOW, "Buffer Overflow" },
@@ -1472,6 +1514,13 @@ const char *bactext_abort_reason_name(uint32_t index)
         ASHRAE_Reserved_String, Vendor_Proprietary_String);
 }
 
+const char *
+bactext_abort_reason_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_abort_reason_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_error_class_names[] = {
     { ERROR_CLASS_DEVICE, "device" },
     { ERROR_CLASS_OBJECT, "object" },
@@ -1491,6 +1540,13 @@ const char *bactext_error_class_name(uint32_t index)
         ASHRAE_Reserved_String, Vendor_Proprietary_String);
 }
 
+const char *
+bactext_error_class_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_error_class_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_error_code_names[] = {
     { ERROR_CODE_OTHER, "other" },
     { ERROR_CODE_AUTHENTICATION_FAILED, "authentication-failed" },
@@ -1768,6 +1824,13 @@ const char *bactext_error_code_name(uint32_t index)
         ASHRAE_Reserved_String, Vendor_Proprietary_String);
 }
 
+const char *
+bactext_error_code_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_error_code_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_month_names[] = {
     { 1, "January" },     { 2, "February" },     { 3, "March" },
     { 4, "April" },       { 5, "May" },          { 6, "June" },
@@ -1783,6 +1846,12 @@ const char *bactext_month_name(uint32_t index)
         bacnet_month_names, index, ASHRAE_Reserved_String);
 }
 
+const char *
+bactext_month_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(bacnet_month_names, index, default_string);
+}
+
 INDTEXT_DATA bacnet_week_of_month_names[] = {
     { 1, "days numbered 1-7" },        { 2, "days numbered 8-14" },
     { 3, "days numbered 15-21" },      { 4, "days numbered 22-28" },
@@ -1796,6 +1865,13 @@ const char *bactext_week_of_month_name(uint32_t index)
         bacnet_week_of_month_names, index, ASHRAE_Reserved_String);
 }
 
+const char *
+bactext_week_of_month_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_week_of_month_names, index, default_string);
+}
+
 /* note: different than DaysOfWeek bit string where 0=monday */
 INDTEXT_DATA bacnet_day_of_week_names[] = {
     { 1, "Monday" },    { 2, "Tuesday" },
@@ -1811,6 +1887,13 @@ const char *bactext_day_of_week_name(uint32_t index)
         bacnet_day_of_week_names, index, ASHRAE_Reserved_String);
 }
 
+const char *
+bactext_day_of_week_name_default(uint32_t index, const char *default_string)
+{
+    return indtext_by_index_default(
+        bacnet_day_of_week_names, index, default_string);
+}
+
 /* note: different than DayOfWeek bit string where 1=monday */
 INDTEXT_DATA bacnet_days_of_week_names[] = {
     { BACNET_DAYS_OF_WEEK_MONDAY, "Monday" },
diff --git a/src/bacnet/bactext.h b/src/bacnet/bactext.h
index 82467c19..ff622b53 100644
--- a/src/bacnet/bactext.h
+++ b/src/bacnet/bactext.h
@@ -27,8 +27,14 @@ extern "C" {
 BACNET_STACK_EXPORT
 const char *bactext_confirmed_service_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *bactext_confirmed_service_name_default(
+    uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_unconfirmed_service_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *bactext_unconfirmed_service_name_default(
+    uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_application_tag_name(uint32_t index);
 BACNET_STACK_EXPORT
 bool bactext_application_tag_index(
@@ -36,8 +42,14 @@ bool bactext_application_tag_index(
 BACNET_STACK_EXPORT
 const char *bactext_object_type_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_object_type_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_object_type_name_capitalized(uint32_t index);
 BACNET_STACK_EXPORT
+const char *bactext_object_type_name_capitalized_default(
+    uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 bool bactext_object_type_index(const char *search_name, uint32_t *found_index);
 BACNET_STACK_EXPORT
 bool bactext_object_type_strtol(const char *search_name, uint32_t *found_index);
@@ -57,23 +69,44 @@ bool bactext_engineering_unit_name_proprietary(uint32_t index);
 BACNET_STACK_EXPORT
 const char *bactext_engineering_unit_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *bactext_engineering_unit_name_default(
+    uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 bool bactext_engineering_unit_index(
     const char *search_name, uint32_t *found_index);
 BACNET_STACK_EXPORT
 const char *bactext_reject_reason_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_reject_reason_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_abort_reason_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_abort_reason_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_error_class_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_error_class_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_error_code_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_error_code_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 uint32_t bactext_property_id(const char *name);
 BACNET_STACK_EXPORT
 const char *bactext_month_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_month_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_week_of_month_name(uint32_t index);
 BACNET_STACK_EXPORT
+const char *
+bactext_week_of_month_name_default(uint32_t index, const char *default_string);
+BACNET_STACK_EXPORT
 const char *bactext_day_of_week_name(uint32_t index);
 BACNET_STACK_EXPORT
 const char *bactext_notify_type_name(uint32_t index);