Dear colleagues, ASASSN-26dq (aka Gaia DR3 375654744699712512) was found in outburst by the ASAS-SN team on 2026 Jun 07.4 at mag g = 13.6. The quiescent counterpart is a 20.4 r mag star, implying an outburst amplitude of approximately 7 magnitudes. I obtained unfiltered CCD time-series photometry of ASASSN-26dq on 2026 Jun 13/14, Jun 15/16 and Jun 18/19, at CBA Extremadura Observatory using a 0.40-m f/5.1 telescope equipped with a Moravian G2-4000 CCD camera. Modulations were already apparent in the June 13/14 light curve, but the observing run was too short for a reliable period determination. Combining the three datasets in Peranso 3.1 allowed a robust period analysis using ANOVA, Lomb-Scargle, Generalized Lomb-Scargle and PDM methods. This revealed regular superhumps with an amplitude of 0.27 mag and a superhump period of 0.0567 +/- 0.0024 d. The object faded from mag 14.5 (unfiltered) on Jun 14th to mag 15.0 (unfiltered) on Jun 19th. Image calibration and photometry were carried out using the latest release of Phoranso, which enabled simultaneous photometry of additional variable stars in the same field of view. These observations establish ASASSN-26dq as a new SU UMa-type dwarf nova. Continued time-series photometry is encouraged to refine the superhump period and monitor its evolution throughout the outburst. The observations will be submitted to AAVSO, CBA and VSNET for further analysis. With kind regards, Tonny Vanmunster CBA Belgium Observatory CBA Extremadura Observatory http://www.cbabelgium.co <http://www.cbabelgium.com/> m