diff --git a/releasenotes/notes/dpi-cli-flag-64552fd0e10e5d91.yaml b/releasenotes/notes/dpi-cli-flag-64552fd0e10e5d91.yaml
new file mode 100644
index 0000000..4345de2
--- /dev/null
+++ b/releasenotes/notes/dpi-cli-flag-64552fd0e10e5d91.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - Add a new CLI flag, --dpi, for subunit2sql-graph to adjust the output image
+    DPI for the generated graphs.
diff --git a/subunit2sql/analysis/agg_count.py b/subunit2sql/analysis/agg_count.py
index 49da590..149d637 100644
--- a/subunit2sql/analysis/agg_count.py
+++ b/subunit2sql/analysis/agg_count.py
@@ -78,4 +78,4 @@ def generate_series():
     df = pd.DataFrame.from_dict(test_dict, orient='index')
     plot = df.plot(kind='barh', stacked=True).set_title(title)
     fig = plot.get_figure()
-    fig.savefig(CONF.output)
+    fig.savefig(CONF.output, dpi=CONF.dpi)
diff --git a/subunit2sql/analysis/dailycount.py b/subunit2sql/analysis/dailycount.py
index a520163..a0ef0b3 100644
--- a/subunit2sql/analysis/dailycount.py
+++ b/subunit2sql/analysis/dailycount.py
@@ -84,4 +84,4 @@ def generate_series():
                      upper_std_dev[10:],
                      color='b', alpha=0.2, label='Std Dev')
     plt.legend()
-    plt.savefig(CONF.output, dpi=900)
+    plt.savefig(CONF.output, dpi=CONF.dpi)
diff --git a/subunit2sql/analysis/failures.py b/subunit2sql/analysis/failures.py
index dcdbb55..bb68ba8 100644
--- a/subunit2sql/analysis/failures.py
+++ b/subunit2sql/analysis/failures.py
@@ -75,5 +75,5 @@ def generate_series():
     print('Success Percentage: %.4f%%' % percent(success_count, run_count))
     print('Skip Percentage: %.4f%%' % percent(skip_count, run_count))
     fig = plot.get_figure()
-    fig.savefig(CONF.output)
+    fig.savefig(CONF.output, dpi=CONF.dpi)
     return ts
diff --git a/subunit2sql/analysis/graph.py b/subunit2sql/analysis/graph.py
index 40a8eca..12848c2 100644
--- a/subunit2sql/analysis/graph.py
+++ b/subunit2sql/analysis/graph.py
@@ -43,6 +43,8 @@ SHELL_OPTS = [
     cfg.StrOpt('stop-date', short='s',
                help='Stop date for the graph only data from before this date '
                     'will be used. Uses ISO 8601 format: 1914-06-28'),
+    cfg.IntOpt('dpi', default=900,
+               help='Image DPI to use for the output graph images')
 ]
 
 
diff --git a/subunit2sql/analysis/run_failure_rate.py b/subunit2sql/analysis/run_failure_rate.py
index 2794fa1..f0dc37a 100644
--- a/subunit2sql/analysis/run_failure_rate.py
+++ b/subunit2sql/analysis/run_failure_rate.py
@@ -74,4 +74,4 @@ def generate_series():
     locs, labels = plt.yticks(range(len(perc_data)), list(perc_data.keys()))
     plt.xlabel('Failure Percentage')
     plt.tight_layout()
-    plt.savefig(CONF.output, dpi=900)
+    plt.savefig(CONF.output, dpi=CONF.dpi)
diff --git a/subunit2sql/analysis/run_time.py b/subunit2sql/analysis/run_time.py
index e3a8a41..cc03c6f 100644
--- a/subunit2sql/analysis/run_time.py
+++ b/subunit2sql/analysis/run_time.py
@@ -79,5 +79,5 @@ def generate_series():
                      lower_std_dev, color='b', alpha=0.2,
                      label='std dev')
     plt.legend()
-    plt.savefig(CONF.output, dpi=900)
+    plt.savefig(CONF.output, dpi=CONF.dpi)
     return ts
diff --git a/subunit2sql/analysis/run_time_meta.py b/subunit2sql/analysis/run_time_meta.py
index 561329c..88481b6 100644
--- a/subunit2sql/analysis/run_time_meta.py
+++ b/subunit2sql/analysis/run_time_meta.py
@@ -68,4 +68,4 @@ def generate_series():
     df.plot(kind='box', rot=90)
     plt.ylabel('Time (sec.)')
     plt.tight_layout()
-    plt.savefig(CONF.output, dpi=900)
+    plt.savefig(CONF.output, dpi=CONF.dpi)
diff --git a/subunit2sql/analysis/test_run_time.py b/subunit2sql/analysis/test_run_time.py
index c5373fe..74c1fe3 100644
--- a/subunit2sql/analysis/test_run_time.py
+++ b/subunit2sql/analysis/test_run_time.py
@@ -63,4 +63,4 @@ def generate_series():
     df.plot(kind='box', rot=90)
     plt.ylabel('Time (sec.)')
     plt.tight_layout()
-    plt.savefig(CONF.output, dpi=900)
+    plt.savefig(CONF.output, dpi=CONF.dpi)