Telomeres are used as biomarkers of vertebrate health because of the link between their length, lifespan, andsurvival. Exposure to environmental stressors appears to alter telomere dynamics, but little is known abouttelomere length and persistent organic pollutant (POP) exposure in wildlife. The white-tailed eagle (WTE;Haliaeetus albicilla) is an avian top predator that accumulates high levels of POPs and may subsequently sufferadverse health effects. Here we study the Baltic WTE population that is well documented to have been exposed tolarge contaminant burdens, thereby making it a promising candidate species for analyzing pollutant-mediatedeffects on telomeres. We investigated telomere lengths in WTE nestlings (n = 168) over 19 years and examinedlegacy POP concentrations (organochlorines and polybrominated diphenyl ethers) in whole blood andserum as potential drivers of differences in telomere length. Although we detected significant year-to-yearvariations in telomere lengths among the WTE nestlings, telomere lengths did not correlate with any of theinvestigated POP concentrations of several classes. Given that telomere lengths did not associate with POPcontamination in the Baltic WTE nestlings, we propose that other environmental and biological factors, whichlikely fluctuate on a year-to-year basis, could be more important drivers of telomere lengths in this population.