diff --git a/icu4c/source/test/fuzzer/break_iterator_fuzzer.option b/icu4c/source/test/fuzzer/break_iterator_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/break_iterator_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/calendar_fuzzer.option b/icu4c/source/test/fuzzer/calendar_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/calendar_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/collator_compare_fuzzer.option b/icu4c/source/test/fuzzer/collator_compare_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/collator_compare_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.option b/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/collator_rulebased_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/converter_fuzzer.option b/icu4c/source/test/fuzzer/converter_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/converter_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/date_format_fuzzer.option b/icu4c/source/test/fuzzer/date_format_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/date_format_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/date_time_pattern_generator_fuzzer.option b/icu4c/source/test/fuzzer/date_time_pattern_generator_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/date_time_pattern_generator_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/decimal_format_symbols_fuzzer.option b/icu4c/source/test/fuzzer/decimal_format_symbols_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/decimal_format_symbols_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/dtfmtsym_fuzzer.option b/icu4c/source/test/fuzzer/dtfmtsym_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/dtfmtsym_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/list_format_fuzzer.option b/icu4c/source/test/fuzzer/list_format_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/list_format_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/locale_fuzzer.option b/icu4c/source/test/fuzzer/locale_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/locale_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/locale_morph_fuzzer.option b/icu4c/source/test/fuzzer/locale_morph_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/locale_morph_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/message_formatter_fuzzer.option b/icu4c/source/test/fuzzer/message_formatter_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/message_formatter_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/normalizer2_fuzzer.option b/icu4c/source/test/fuzzer/normalizer2_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/normalizer2_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/number_format_fuzzer.option b/icu4c/source/test/fuzzer/number_format_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/number_format_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/number_formatter_fuzzer.option b/icu4c/source/test/fuzzer/number_formatter_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/number_formatter_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/plurrule_fuzzer.option b/icu4c/source/test/fuzzer/plurrule_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/plurrule_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/relative_date_time_formatter_fuzzer.option b/icu4c/source/test/fuzzer/relative_date_time_formatter_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/relative_date_time_formatter_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/rule_based_break_iterator_fuzzer.option b/icu4c/source/test/fuzzer/rule_based_break_iterator_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/rule_based_break_iterator_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/time_zone_names_fuzzer.option b/icu4c/source/test/fuzzer/time_zone_names_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/time_zone_names_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/timezone_create_fuzzer.option b/icu4c/source/test/fuzzer/timezone_create_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/timezone_create_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/ubidi_fuzzer.option b/icu4c/source/test/fuzzer/ubidi_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/ubidi_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/ucasemap_fuzzer.option b/icu4c/source/test/fuzzer/ucasemap_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/ucasemap_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uloc_canonicalize_fuzzer.option b/icu4c/source/test/fuzzer/uloc_canonicalize_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uloc_canonicalize_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uloc_for_language_tag_fuzzer.option b/icu4c/source/test/fuzzer/uloc_for_language_tag_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uloc_for_language_tag_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uloc_get_name_fuzzer.option b/icu4c/source/test/fuzzer/uloc_get_name_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uloc_get_name_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uloc_is_right_to_left_fuzzer.option b/icu4c/source/test/fuzzer/uloc_is_right_to_left_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uloc_is_right_to_left_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uloc_open_keywords_fuzzer.option b/icu4c/source/test/fuzzer/uloc_open_keywords_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uloc_open_keywords_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/unicode_string_codepage_create_fuzzer.option b/icu4c/source/test/fuzzer/unicode_string_codepage_create_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/unicode_string_codepage_create_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/unicodeset_fuzzer.option b/icu4c/source/test/fuzzer/unicodeset_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/unicodeset_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uprop_fuzzer.option b/icu4c/source/test/fuzzer/uprop_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uprop_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uregex_match_fuzzer.option b/icu4c/source/test/fuzzer/uregex_match_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uregex_match_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536
diff --git a/icu4c/source/test/fuzzer/uregex_open_fuzzer.option b/icu4c/source/test/fuzzer/uregex_open_fuzzer.option
new file mode 100644
index 000000000000..678d526b1ea9
--- /dev/null
+++ b/icu4c/source/test/fuzzer/uregex_open_fuzzer.option
@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536