Kate ter Horst MBE (6 July 1906, Amsterdam – 21 February 1992, Oosterbeek) was a Dutch housewife and mother who tended wounded and dying Allied soldiers during the Battle of Arnhem. Her British patients nicknamed her the Angel of Arnhem.

Ter Horst was born Kate Anna Arriëns, daughter of Pieter Albert Arriëns and Catharina Maingay. She married Jan ter Horst, a lawyer from Rotterdam, with whom she had six children.^{[citation needed]}

Kate ter Horst witnessed the landings by the British 1st Airborne Division at the beginning of Operation Market Garden on 17 September 1944, noting the event in her diary.

Mad with joy we walk through the garden and climb up on the roof so we can see more, grasp more of what's happening. We can hardly believe it. Can it really be true? Is this the long-awaited end to our sorrows, falling from the sky? Does this mean freedom?

The goal of the operation was for the paratroopers to seize the bridges in and around Eindhoven, Nijmegen and Arnhem. The plan called for the British XXX Corps to advance across these bridges and then push into the Ruhr Valley industrial area of Germany. However, the advance on Arnhem fell behind schedule, and the troops there were forced into a defensive pocket at Oosterbeek.

Captain Randall Martin asked the ter Horsts permission to set up a Regimental Aid Post in their house at the Benedendorpsweg in Oosterbeek.^{[citation needed]}

During the eight days of fighting, ter Horst tended to about 250 wounded British paratroopers herself. Some of her most famous actions in looking after the British troops included walking around her home reading the Bible to dying soldiers and finding water in the most unlikely places (such as the boiler and toilet) when, due to the large concentration of British troops, the house became a target.^{[citation needed]}

Ter Horst wrote about these experiences in a book called Cloud Over Arnhem. Writing the foreword for the book, Arnhem veteran General Sir Frank King noted:^{[citation needed]}