Knottingley Coat of Arms represents the most important aspects in the growth of the town and its industry.
The water stands for the River Aire and the Knottingley - Goole canal.  

The bridge represents the Great North road, crossing the river at Ferrybridge.

The white roses of Yorkshire represent the history of the town and the golden knot is the emblem of the De Lacy's who once lived in this area.

The arm held aloft at the top represents the glass industry of Knottingley and the motto 'Industria Ditat' means 'progress through industry'.