Holy Trinity Church (also known as Church of the Holy Trinity, or Holy Trinity, Boar Lane), in Leeds, West Yorkshire, is a Church of England Parish Church in the Parish of Leeds City in the Diocese of Ripon and Leeds. It was built in 1722–7, but the steeple dates from 1839. It is a Grade I Listed building.A 1714 proposal that a new church should be erected in central Leeds foundered for lack of subscribers, but, in 1722, Lady Elizabeth Hastings of Ledston, backed by leading merchants, revived the project, and the foundation stone of Holy Trinity was laid on 27 August, 1722.
The architect of the church was for some time believed to be William Halfpenny. However, it has subsequently been discovered that his designs for the church, for which he was paid £1 11s 6d on 8 May 1723, were never executed, and that the architect was William Etty of York. A letter from William Cookson to Ralph Thoresby dated 15 May 1723, enclosed "a draught [sic], the south front of our new church"; it was drawn by Mr. Etty of York, who has also made us a wooden modell for our workmen to go by." Etty had been paid nineteen guineas in April of the same year for the model, which survived into the nineteenth century.