Scientific research has often contributed to racist patterns and reproduced racism against Roma* (In this chapter, racism against Roma or anti-Roma racism is used to refer to racist actions, thought patterns and experiences. The term antigypsyism is used with reference to the academic category of analysis, which reveal stigmatizing patterns of interpretation and mechanisms that make Sinti and Roma “others” (cf. End, 2012, p. 28f).) in the last centuries and still does today. Reputedly, knowledge had been marked as scientifically consolidated and had been used to legitimate societal exclusion and persecution of Sinti* and Roma* (In this chapter, the gendered terms Roma* and Sinti* are used due to gender-fair and inclusive language.) in Germany (cf., e.g., Benz, Sinti und Roma: Die unerwünschte Minderheit. Über das Vorurteil Antiziganismus. Metropol, 2014; End et al., Antiziganistische Zustände: Zur Kritik eines allgegenwärtigen Ressentiments. Unrast Verlag, 2009; Fings, Sinti und Roma. Geschichte einer Minderheit. C.H. Beck, 2019; Messerschmidt, Rassismus, Antisemitismus und Antiziganismus in der postnationalsozialistischen Gesellschaft. Belz Juventa, 2021; Reuss, Kontinuitäten der Stigmatisierung: Sinti und Roma in der deutschen Nachkriegszeit. Metropol, 2015; Winckel, Antiziganismus: Rassismus gegen Roma und Sinti im vereinigten Deutschland. Unrast, 2002). It is therefore important to question how knowledge is produced, who produces knowledge, and which knowledge is recited. On the basis of a realized research study in Germany, this chapter focuses on how researchers could contribute to combat racism against Roma* by critically being aware of knowledge production, by focusing on deconstructive discourses and reconstructive research approaches.