The figure represents a rise on seven killings the year before, with the report blaming growing hate speech in conferences and the media.
Ahmadis were declared non-Muslims by the Pakistani government in 1974 because of their belief in a prophet after Muhammad. They are frequent victims of discrimination and violent assaults, but it is rare for militants to be convicted for attacks against them.
In the worst case of violence last year, an angry mob torched an Ahmadi neighbourhood in the eastern city of Gujranwala, killing a woman and two girls after a 17-year-old Ahmadi boy allegedly posted a blasphemous picture on Facebook.
In May, gunmen shot dead an American heart surgeon, Mehdi Ali, who was visiting Pakistan on a charity mission in the southern province of Sindh.
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The report, drawn up by the main Ahmadi community group, claimed a link between inflammatory media coverage and violence.
Five days after a religious show was aired, another Ahmadi was murdered.
Rabia Mehmood, a researcher on minorities at the Jinnah Institute think tank, said that rising anti-Ahmadi sentiments were linked to the overall rising levels of religious extremism in the country, which has been experiencing a homegrown Islamist insurgency for more than a decade.
In 2010, Taliban gunmen stormed two Ahmadi mosques, killing more than 90 people in the worst ever attack on the community.
Since that time, many Ahmadis have taken to hiding their identity in public or have fled the country, said Mustafa Qadri, a researcher for Amnesty International.
"No group faces more persecution, more discrimination, and is more at risk than Ahmadis, in law and in practice," he said.