diff --git a/neurodsp/plts/time_series.py b/neurodsp/plts/time_series.py
index 088b104e..58f9d1ae 100644
--- a/neurodsp/plts/time_series.py
+++ b/neurodsp/plts/time_series.py
@@ -19,9 +19,9 @@ def plot_time_series(times, sigs, labels=None, colors=None, ax=None, **kwargs):
 
     Parameters
     ----------
-    times : 1d array or list of 1d array
+    times : 1d or 2d array, or list of 1d array
         Time definition(s) for the time series to be plotted.
-    sigs : 1d array or list of 1d array
+    sigs : 1d or 2d array, or list of 1d array
         Time series to plot.
     labels : list of str, optional
         Labels for each time series.
@@ -47,8 +47,8 @@ def plot_time_series(times, sigs, labels=None, colors=None, ax=None, **kwargs):
 
     ax = check_ax(ax, (15, 3))
 
-    times = repeat(times) if isinstance(times, np.ndarray) else times
-    sigs = [sigs] if isinstance(sigs, np.ndarray) else sigs
+    times = repeat(times) if (isinstance(times, np.ndarray) and times.ndim == 1) else times
+    sigs = [sigs] if (isinstance(sigs, np.ndarray) and sigs.ndim == 1) else sigs
 
     if labels is not None:
         labels = [labels] if not isinstance(labels, list) else labels
@@ -74,9 +74,9 @@ def plot_instantaneous_measure(times, sigs, measure='phase', ax=None, **kwargs):
 
     Parameters
     ----------
-    times : 1d array or list of 1d array
+    times : 1d or 2d array, or list of 1d array
         Time definition(s) for the time series to be plotted.
-    sigs : 1d array or list of 1d array
+    sigs : 1d or 2d array, or list of 1d array
         Time series to plot.
     measure : {'phase', 'amplitude', 'frequency'}
         Which kind of measure is being plotted.
diff --git a/neurodsp/tests/plts/test_time_series.py b/neurodsp/tests/plts/test_time_series.py
index e1e13762..0e112454 100644
--- a/neurodsp/tests/plts/test_time_series.py
+++ b/neurodsp/tests/plts/test_time_series.py
@@ -1,6 +1,7 @@
 """Test time series plots."""
 
 from pytest import raises
+import numpy as np
 
 from neurodsp.tests.settings import TEST_PLOTS_PATH
 from neurodsp.tests.tutils import plot_test
@@ -23,6 +24,11 @@ def test_plot_time_series(tsig):
                      colors=['k', 'r'], save_fig=True, file_name='test_plot_time_series.png',
                      file_path=TEST_PLOTS_PATH)
 
+    # Test 2D arrays
+    times_2d = np.vstack((times, times))
+    tsig_2d = np.vstack((tsig, tsig))
+    plot_time_series(times_2d, tsig_2d)
+
 @plot_test
 def test_plot_instantaneous_measure(tsig):