Can I get unconditional master's admission in Germany with Goethe B2?

It depends entirely on the programme: there is no Germany-wide rule that "B2 is enough" or "C1 is required" for a master's. The university and programme decide which language certificates they accept and at what level.

#German-taught programmes

• Many ask for DSH or TestDaF; whether a Goethe certificate is accepted, and at which level, varies by programme.
• If you meet the level the programme requires, unconditional admission is possible; if not, the university's own rules decide what happens.

#English-taught programmes

• Here the English proof (e.g. IELTS/TOEFL) and any German requirement are set by the programme. Some ask for no German at all.

#Conditional admission (bedingte Zulassung)

• Some universities admit you on condition that you meet the language requirement later. What that condition involves follows the university's rules.
• According to the German missions in Türkiye, the university's own language exam is the binding threshold, and a new application may be needed once you meet the language requirement.

#What to do

Read the "Sprachnachweis" section of your target programme and check in writing whether Goethe B2 is accepted. If in doubt, ask the university's international office.

Source: Conditional admission and language level guide · DAAD admission database