This paper investigates the prosodic characteristics of French and English discourse markers according to their pragmatic meaning in context. The study focusses on three French discourse markers (alors ['so'], bon ['well'], and donc ['so']) and three English markers (now, so, and well). Hundreds of occurrences of discourse markers were automatically extracted from French and English speech corpora and manually annotated with pragmatic functions labels. The paper compares the pro-sodic characteristics of discourse markers in different speech styles and in two languages. The first comparison is carried out with respect to two different speech styles in French: spontaneous speech vs. prepared speech. The other comparison of the prosodic characteristics is conducted between two languages, French vs. English, on the prepared speech. Results show that some pragmatic functions of discourse markers bring about specific prosodic behaviour in terms of presence and position of pauses, and their F0 articulation in their immediate context. Moreover, similar pragmatic functions frequently share similar prosodic characteristics, even across languages.