Thames Challenge Cup

{{Short description|Event at the annual Henley Royal Regatta}}

{{Use British English|date=November 2023}}

{{Use dmy dates|date=April 2022}}

{{Infobox sport event

| name = Thames Challenge Cup

| image = File:Eight (rowing).svg

| size =

| caption =

| location = Henley-on-Thames, Oxfordshire

| dates = 1868 – present

| venue = Henley Royal Regatta, River Thames

| men =

| women =

| previous =

| next =

}}

The Thames Challenge Cup is a rowing event for men's eights at the annual Henley Royal Regatta on the River Thames at Henley-on-Thames in England. It is open to male crews from a single rowing club.{{cite web|url=https://www.hrr.co.uk/henley-results/search/0/12759/0|title=results|website=Henley Royal Regatta}}{{cite web|url=http://www.rowinghistory.net/henley?event=Thames+Challenge+Cup&competitor=|title=Results|website=Friends of Henley Rowing}}

Boat clubs from any university, college or secondary school are not permitted, neither are squad oarsmen seeking selection for F.I.S.A. Heavyweight or Lightweight Championships. A crew may not include oarsmen who have rowed or sculled in an Olympic Games or a F.I.S.A. Senior World Championships for Heavyweights or Lightweights or who have won a medal at World Under 23 Championships (or the World Under 23 Regatta or The Nations' Cup).