Behavioural experiments in the laboratory with three-spined stickleback fish (Gasterosteus aculeatus) were carried out between March 2012 and February 2013. Data are available for fish learning and fish personality. The fish learning data are of speed and accuracy of decision making in stickleback fish of different personalities. The fish personality data are on catch order, mean time spent out of cover, proportion of time fish spent out of cover, sex differences for the catch order, sex differences for the catch order on two occasions and sex differences in the proportion of time spent out of cover. The work was funded by a BBSRC studentship, NERC (grant NE/H016600/2 Does diversity deliver? How variation in individual knowledge and behavioural traits impact on the performance of animal groups) and The Royal Society (RG 110401) Data were collected under controlled laboratory conditions. All animal care and experimental procedures described here were approved as non-regulatory procedures by the Ethics and Welfare Committee of the Royal Veterinary College, London (URN 2011 1084).