Teacher Ashling, from Tullamore, Co. Offaly was murdered on Wednesday.
The 23-year-old had gone for an afternoon run when her killer struck.
The vigil in Derry was staged by Alliance for Choice at 4pm on Friday and a large crowd attended.
5. DER - ASHLING MURPHY VIGIL
Colum Eastwood MP among the attendance at the vigil for Ashling Murphy held at the Guildhall Steps on Friday afternoon. Photo: George Sweeney. DER2202GS – 085
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Mayor Alderman Graham Warke attended the vigil for Ashling Murphy held at the Guildhall Steps on Friday afternoon. Photo: George Sweeney. DER2202GS – 087
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Candle and message at the vigil for Ashling Murphy held at the Guildhall Steps on Friday afternoon. Photo: George Sweeney. DER2202GS – 081
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People who attended the vigil for Ashling Murphy held at the Guildhall Steps on Friday afternoon. Photo: George Sweeney. DER2202GS – 088