Hyam's Mineral Water Works is a nineteenth century building at 23 Glendower Street, Monmouth, Wales.

"[3] In 1895 Kelly's Directory of Monmouthshire for 1901 describes John B Hyam's business as "mineral & aerated water manufacturer & ale & porter merchant.

"[4] About this time proprietary medicines became popular and were advertised in the Monmouthshire Beacon, amongst which was 'Hyam's Anti-Influenza Tonic Water'.

He traded as a Mineral Water Manufacturer and bottler of Bass and Worthington's Ales, Guinness Stout and Wheatley's Hop Bitters.

The premises were then occupied by Ebley Ltd., a tyre company, who subsequently relocated to the Mayhill Industrial Estate, and the buildings on Glendower Street were converted into apartments and named Hyam Court.