diff --git a/src/bench/bench.cpp b/src/bench/bench.cpp
index a2dbb11888..d6913a05f2 100644
--- a/src/bench/bench.cpp
+++ b/src/bench/bench.cpp
@@ -29,7 +29,16 @@ const std::function<void(const std::string&)> G_TEST_LOG_FUN{};
 
 const std::function<std::vector<const char*>()> G_TEST_COMMAND_LINE_ARGUMENTS{};
 
-const std::function<std::string()> G_TEST_GET_FULL_NAME{};
+/**
+ * Retrieve the name of the currently in-use benchmark.
+ * This is applicable only to benchmarks that utilize the unit test
+ * framework context setup (e.g. ones using 'MakeNoLogFileContext<TestingSetup>()').
+ * It places the datadir of each benchmark run within their respective benchmark name.
+ */
+static std::string g_running_benchmark_name;
+const std::function<std::string()> G_TEST_GET_FULL_NAME = []() {
+    return g_running_benchmark_name;
+};
 
 namespace {
 
@@ -117,6 +126,7 @@ void BenchRunner::RunAll(const Args& args)
             bench.output(nullptr);
         }
         bench.name(name);
+        g_running_benchmark_name = name;
         if (args.min_time > 0ms) {
             // convert to nanos before dividing to reduce rounding errors
             std::chrono::nanoseconds min_time_ns = args.min_time;
diff --git a/src/test/util/setup_common.cpp b/src/test/util/setup_common.cpp
index 2de282dbf6..a22d34c075 100644
--- a/src/test/util/setup_common.cpp
+++ b/src/test/util/setup_common.cpp
@@ -75,8 +75,6 @@ using node::VerifyLoadedChainstate;
 const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr;
 
 constexpr inline auto TEST_DIR_PATH_ELEMENT{"test_common bitcoin"}; // Includes a space to catch possible path escape issues.
-/** Random context to get unique temp data dirs. Separate from m_rng, which can be seeded from a const env var */
-static FastRandomContext g_rng_temp_path;
 
 struct NetworkSetup
 {
@@ -139,10 +137,10 @@ BasicTestingSetup::BasicTestingSetup(const ChainType chainType, TestOpts opts)
     // data directories use a random name that doesn't overlap with other tests.
     SeedRandomForTest(SeedRand::FIXED_SEED);
 
+    const std::string test_name{G_TEST_GET_FULL_NAME ? G_TEST_GET_FULL_NAME() : ""};
     if (!m_node.args->IsArgSet("-testdatadir")) {
-        // By default, the data directory has a random name
-        const auto rand_str{g_rng_temp_path.rand256().ToString()};
-        m_path_root = fs::temp_directory_path() / TEST_DIR_PATH_ELEMENT / rand_str;
+        const auto now{TicksSinceEpoch<std::chrono::nanoseconds>(SystemClock::now())};
+        m_path_root = fs::temp_directory_path() / TEST_DIR_PATH_ELEMENT / test_name / util::ToString(now);
         TryCreateDirectories(m_path_root);
     } else {
         // Custom data directory
@@ -151,8 +149,7 @@ BasicTestingSetup::BasicTestingSetup(const ChainType chainType, TestOpts opts)
         if (root_dir.empty()) ExitFailure("-testdatadir argument is empty, please specify a path");
 
         root_dir = fs::absolute(root_dir);
-        const std::string test_path{G_TEST_GET_FULL_NAME ? G_TEST_GET_FULL_NAME() : ""};
-        m_path_lock = root_dir / TEST_DIR_PATH_ELEMENT / fs::PathFromString(test_path);
+        m_path_lock = root_dir / TEST_DIR_PATH_ELEMENT / fs::PathFromString(test_name);
         m_path_root = m_path_lock / "datadir";
 
         // Try to obtain the lock; if unsuccessful don't disturb the existing test.