Jenet Porter (née Raby; c. 1584 – January 7, 1650) was the 11th great-grandmother of Cometan, classified as one of Cometan’s distant maternal ancestors in the Prescott family line. Born in Kirkham, Lancashire, Jenet was married to Thomas John Porter (1579 – 1623) and they had at least one daughter together named Alice Porter. Jenet is recorded as having died at sixty-six in Kirkham, Lancashire. Jenet is known to have married Thomas on 18th August 1605 in Kirkham.
In Cometanic ancestry, Jenet is classified as part of the 13th generation retrograde, categorising her as a distant ancestor of Cometan.