Oregon Route 237 is an Oregon state highway running from OR 82 in Island City to Interstate 84 and U.S. Route 30 in North Powder.

It is a combined 38.93 miles (62.65 km) long and runs generally northwest to southeast in an inverted L pattern.

OR 237 begins at an intersection with OR 82 in Island City.

It heads east to Cove, where it turns south, then west, then south again to Union, where it overlaps OR 203 for 0.58 miles (0.93 km).

The entire route is in Union County.